PENGARUH STRATEGI PEMBELAJARAN KOOPERATIF TIPE COOPERATIVE SCRIPT DAN STRATEGI PROBLEM BASED LEARNING TERHADAP KEMAMPUAN PEMAHAMAN KONSEP DAN PEMECAHAN MASALAH MATEMATIS SISWA KELAS XI PADA MATERI PROGRAM LINEAR SMA NEGERI 1 TANJUNG PURA T.P 2018-2019

This study aims to: 1) know that the ability of students to understand the concepts taught by the Cooperative Script Strategy is more influential than to be taught with the Problem Based Learning Strategy; 2) knowing that students' mathematical problem solving abilities taught by Cooperative Script Strategies are more influential than being taught with Problem Based Learning Strategies; 3) knowing that the ability of understanding concepts and mathematical problem solving taught by Cooperative Script Strategies is more influential than being taught with Problem Based Learning Strategies. 4) knowing the interaction between learning strategies on the ability to understand concepts and students' mathematical problem solving abilities. This research is a type of quantitative research with a quasi-experimental approach. The population is all students of class XI IPA of SMA Negeri 1 Tanjung Pura T.P 2018-2019 consisting of 3 classes and totaling 104 students will be selected 2 classes as the experimental class and the control class that are sampled in this study. The test instrument used by using a test in the form of description. Data analysis was performed using Two Path Analysis of Variance (ANAVA). The results of these findings indicate: 1) The ability to understand the concepts of students taught with the Cooperative Script Strategy is more influential than taught with the Problem Based Learning Strategy; 2) The mathematical problem solving ability of students taught with Cooperative Script Strategies is no more influential than students taught with Problem Based Learning Strategies; 3) The ability to understand concepts and mathematical problem solving students who are taught with Cooperative Script Strategy is more influential than taught with Problem Based Learning Strategies; 4) There is an interaction between learning strategies with the ability to understand concepts and solve students' mathematical problems

Efek Probio_FM dan Larutan Kunyit terhadap Performa dan Penurunan Jumlah Campylobacter pada Itik Lokal Kerinci

ABSTRACT. Campylobacter merupakan salah satu bakteri yang terdapat dalam usus halus itik, yang dapat menurunkan performa dan menyebabkan penyakit yang bersifat zoonosis. Penularan kebanyakan terjadi melalui daging, tetapi belum ada yang memastikan bagaimana bakteri ini dapat berada pada daging, sehingga berbagai biokontrol diupayakan dalam menekan dan mencegah penularan Campylobacter. Tujuan penelitian ini untuk melihat efektivitas pemberian probiotik bakteri asam laktat, kunyit, dan gabungan keduanya dalam menekan keberadaan Campylobacter dalam usus halus, serta pengaruh pemberiannya terhadap performa itik lokal kerinci. Penelitian menggunakan Rancangan Acak Lengkap (RAL) dengan materi 100 ekor itik lokal kerinci jantan, yang mendapat perlakuan kontrol (P0); pemberian Probio_FM (P1); pemberian larutan kunyit (P2), dan gabungan Probio_FM dan larutan kunyit (P3) dalam pakan, dengan masing-masing 5 ulangan. Hasil penelitian ini menunjukkan bahwa perlakuan yang diberikan tidak berpengaruh nyata (P0,05) terhadap performa, pH, jumlah bakteri asam laktat, dan jumlah Campylobacter pada jejunum dan ileum itik kerinci. Berdasarkan hasil penelitian, dapat disimpulkan bahwa pemberian Probi_FM, larutan kunyit, dan gabungan keduanya belum mampu menekan keberadaan Campylobacter dalam usus halus itik kerinci.  (The effect of Probio FM and turmeric solution on performance and reducing Campylobacter in Kerinci local duck) ABSTRAK. Campylobacter is one of the bacteria found in the small intestine of ducks, which can reduce performance and cause zoonotic diseases. Transmission mostly occurs through meat, but no one has confirmed how this bacteria can be in the meat, so various biocontrols are treated to suppress and prevent Campylobacter transmission. This study intended to evaluate the effectiveness of lactic acid bacteria probiotics, turmeric, and their combination administrations in suppressing the presence of Campylobacter in the small intestine, as well as the effect of their administration on the performance of local kerinci ducks. The experiment used a completely randomized design (CRD) with 100 male local kerinci ducks, received control treatment (P0); administration of Probio_FM (P1); administration of turmeric solution (P2), and a combination of Probio_FM and turmeric solution (P3) in duck feed, with 5 replications respectively. The results showed that all treatments had no significant effect (P0.05) on the performance, pH, the number of lactic acid bacteria, and Campylobacter in the jejunum and ileum of kerinci ducks. It could be concluded that the administration of Probio_FM, turmeric solution, and their combination had not been able to suppress the presence of Campylobacter in the small intestine of kerinci ducks

Hazard Management in Tourism: A Case Study of The Senaru-Sembalun Hiking Trail, Mount Rinjani National Park, Indonesia

Mount Rinjani (3726 masl) is the second-highest volcano in Indonesia with a newer active volcano called Mount Barujari (2376 masl) inside its crater. The mountain has become the center of tourist destinations in West Nusa Tenggara Province, with hiking as the most popular activity carried out by visitors. This study aimed to identify physical and biological hazard potentials and activities that may put visitors at risk to prepare hazard management recommendations. We carried out an interview and field observation for the study in April 2018. We used the United Nations Environment Programme (UNEP) risk assessment as a reference in biological and physical hazard analysis, and the National Patient Safety Agency for human activities. We also used ArcGIS 10.1 software to develop a map of hazard potentials. Cliff (physical hazard), tree roots (biological hazard), and running (activity) were hazards with the highest risks. All four management options offered by the UNEP, i.e., reducing risk, accepting the tolerable risk, avoiding risk, and transferring risk, were applicable in this area. We proposed that the management considering to increase local community and visitors' knowledge of hazards as a preventive measure while continuing to provide repressive measures

Soil Macrofauna Exploration in Cocoa Plants During the Dry Season

Introduction: The purpose of this research was aimed to identify the types of soil macrofauna in mature and immature of cocoa. Materials and Methods: The research has been conducted at cocoa of smallholder, Langkat District and continued with insect identification at the Laboratory of Plant Pest, Faculty of Agriculture, Universitas Sumatera Utara, Medan from April until May 2019. The research was used the quantitative descriptive methods. Results: found in several orders of Hymenoptera, Orthoptera, Coleoptera, Oligochaeta, and Araneae with different numbers of macrofauna

Comparative genomics reveals high biological diversity and specific adaptations in the industrially and medically important fungal genus Aspergillus

Peer reviewe

PENGARUH SUBTITUSI TEPUNG SORGUM PUTIH DALAM PEMBUATAN VANILLA CUPCAKE TERHADAP KUALITAS FISIK DAN DAYA TERIMA KONSUMEN

This research seeks to analyze the impacts of substituting white sorghum flour in the making of vanilla cupcakes on both their physical quality and consumer acceptance. This research was carried out at the Pastry and Bakery Laboratory of Culinary Education, Faculty of Engineering, State University of Jakarta in July 2022 - January 2024.  The method used in this research is the experimental method involving vanilla cupcakes with white sorghum flour substitution of 20 percent, 30 percent, and 40 percent.  A consumer acceptability test was conducted on 30 semi-trained panelists evaluating various organoleptic aspects.  The statistical analysis, utilizing Analysis of Variance (ANOVA) for the physical quality test, revealed a significant influence of white sorghum flour substitutions (20%, 30%, and 40%) on both cupcakes rising power and stability.  After conducting the Friedman Test on several aspects, results showed that there is no statistically significant difference between treatments on these following aspects: 1) the color of crumbs; 2) sorghum aroma; 3) sweetness; and 4) the texture of the top of the cupcake.  On the other hand, the test showed that there is a statistically significant difference between treatments on the following aspects: 1) butter aroma; 2) the taste of sorghum; 3) crumbs texture; and 4) the color of the top of the cupcake.  Further investigation using Tukey's test is necessary for the aspects with observed differences.  Ultimately, the most preferred product was the vanilla cupcakes with a 20 percent sorghum flour substitution.Keywords:  consumer acceptability, physical quality, vanilla cupcake, white sorghum flou

Penurunan Kandungan Polutan pada Air Limbah Industri Tempe Menggunakan Moving Bed Biofilm Reactor (Mbbr)

Saat ini usaha home industry tempe sedang berkembang. Limbah yang dihasilkan dari industri tempe akan menjadi suatu permasalahan bagi lingkungan. Pengolahan air limbah industri tempe dapat dilakukan dengan cara pengolahan biologis karena dapat menurunkan kandungan organik pada air limbah. Salah satu pengolahan biologis yang dapat digunakan yaitu proses Moving Bed Biofilm Reactor (MBBR). Proses MBBR pada prinsipnya adalah proses lumpur aktif yang ditingkatkan dengan adanya penambahan media yang bergerak dan aerasi pada reaktor. Penelitian ini bertujuan untuk mengetahui kinerja MBBR dalam menurunkan kandungan COD, BOD5, TSS, NH3, dan PO4 pada air limbah tempe. Media yang digunakan adalah Kaldnes K1 dengan variasi jumlah media yaitu tanpa media (0%), 20%, dan 40%. Variasi selanjutnya adalah aerator yaitu aerator gelembung kasar dan aerator gelembung halus. Hasil penelitian ini menunjukkan bahwa kemampuan MBBR paling optimum pada variasi media 40% dan aerator gelembung halus di waktu sampling 8 jam. Reaktor MBBR mampu menurunkan COD sebesar 87.89%, BOD5 sebesar 86.91%, TSS sebesar 85.63%, NH3 sebesar 87.98%, dan PO4 sebesar 82.93%