This study aims to analyze students' digital literacy in the context of learning biology material on the digestive system and identify students' digital literacy in terms of interest in digital technology, internet costs, gender, and learning outcomes. The research was conducted at one private high school in Medan, Indonesia. The instrument used is a questionnaire and a list of student grades from the teacher. The results showed that students interested in digital technology had a significantly higher digital literacy score than students who had less interest in digital technology. There was no significant difference in digital literacy between groups of students with internet fees < US$ 14 per month and students with internet fees of US$ 14 per month, and between groups of male and female students. The result of the analysis also found a positive correlation between learning outcomes and digital literacy.

Mengutip ringkasan dan pernyataan atau mencetak ulang gambar atau tabel dari jurnal ini harus mendapat ijin langsung dari penulis. Produksi ulang dalam bentuk kumpulan cetakan ulang atau untuk kepentingan periklanan atau promosi atau publikasi ulang dalam bentuk apa pun harus seizin salah satu penulis dan mendapat lisensi dari penerbit. Jurnal ini diedarkan sebagai tukaran untuk perguruan tinggi, lembaga penelitian dan perpustakaan di dalam negeri.Quoting summaries and statements or reprinting images or tables from this journal must get permission directly from the author. Reproduction in the form of a collection of reprints or for the purposes of advertising or promotion or re-replication in any form must be authorized by one of the authors and obtain a license from the publisher. This journal is circulated as an exchange for universities, research institutions and libraries in the country.Beyond Linguistika, Jurnal Kebahasaan dan Pendidikan Bahasa, merupakan jurnal ilmiah yang menyajikan artikel orisinal tentang bahasa dan kebahasaan. Jurnal ini merupakan sarana publikasi dan ajang berbagi riset dan pengembangannya di bidang bahasa secara global. Pemuatan artikel di jurnal ini dialamatkan ke kantor editor. Informasi lengkap untuk pemuatan artikel dan petunjuk penulisan artikel tersedia di dalam setiap terbitan. Artikel yang masuk akan diproses seleksi editor. Jurnal ini terbit secara berkala sebanyak dua kali dalam setahun (April dan Oktober).Beyond Linguistika, Journal of Linguistics and Language Education, is a scientific journal that presents original articles on Linguistics and Language education. This journal is a means of publication and a place to share research and development in the field of language globally. Loading articles in this journal is sent to the editor's office. Complete information for loading articles and instructions for writing articles is available in every issue. The incoming article will be processed by the editor selection. This journal is published regularly twice a year (April and October).

Andaliman (Zanthoxylum acanthopodium DC) is a member of the Rutaceae family which is spread in the regions of East Asia, Southeast Asia, and South Asia. In the territory of Indonesia, andaliman is spread in the highlands of North Sumatra and parts of Aceh. Andaliman is a spice plant that is usually used as a spice for the Batak tribe in North Sumatra. This study aims to analyze the characteristics of andaliman habitat in North Sumatra. A total of 169 samples from 8 regencies in North Sumatra analyzed habitat characteristics using the ArcGis 10.3 program using various ecological data. The results showed that andaliman was widely distributed in the highlands in North Sumatra. Andaliman inhabits 4 soil types, namely Humic Acrisols (36.09%), Orthic Acrisols (34.31%), Humic Cambisols (18.34%), and Orthic Ferralsols (11.24%), 7 Types of land cover namely dry land agriculture (81.06%), open soil (0.59%), rice fields (6.5%), settlements (2.9%), secondary dryland forests (4.73%), shrubs (3.55%), and industrial plantations (0.59%). Andaliman inhabits a limited elevation between 854-2676 m above sea level. The highest number in elevation 1161-1526 (76.92%), 854-1160 (14.20%), 1527-1968 (7.69%), 1969-2676 (0.59%). In rainfall ecology variables, Andaliman occupies an area with rainfall between 1500-4000 mm/year. The highest number occupies rainfall between 1500-2000 (8.87%), 2000-2500 (83.43%), 2500-3000 (5.91%), 3000-3500 (0.59%), and 3500-4000 (0.59%) mm/annual. Most of Andaliman grew in areas with Critical land types (69.23%), rather critical (25.44%), critical potential (3.55%) and very critical (1.18%). Andaliman occupies a limited habitat character so that the right steps are needed in his conservation efforts. This research is expected to become important information in the conservation and cultivation efforts of andaliman in North Sumatra.

From a Muslim perspective, it is very important to know the content, raw materials, and processing of the raw materials used in the cosmetic products used. One type of cosmetics that is most often used is lipstick. However, many lipsticks circulating in Indonesia are not equipped with a halal logo. One of the ingredients for lipstick is pork derivatives. These pig derivatives can be detected using PCR. Based on this background, this study aims to test the presence of pig DNA in lipstick samples that have not been certified halal on the market using 4 combinations of pig DNA fragments coding primers by using the conventional PCR method. Five commercial lipstick samples were selected by purposive sampling. DNA isolation was carried out according to the Wizard Promega Universal Kit. The PCR process was carried out with temperature optimization as follows: Predenaturation 98oC: 2 minutes, denaturation of 95oC: 30 seconds, Annealing 61oC: 30 seconds, Extension 72oC: 40 seconds, and Postextension 72oC: 3 minutes. The results showed that of the 5 samples tested by PCR using 5 kinds of primer combination, none of the samples were suspected to contain pork DNA. DNA isolation is the most difficult step in the lipstick sample detection process. Even though the detection result is negative, it is necessary to carry out further tests which become the Gold Standard of DNA-based testing using Real Time PCR.

Herliansyah R, Fitria I. 2018. Latent variable models for multi-species counts modeling in ecology. Biodiversitas 19: 1871-1876. High-dimensional multi-species counts are often collected in ecology to understand the spatial distribution over different locations and to study effects of environmental changes. Modeling multivariate abundance is challenging as we need to consider the possibility of interactions across species. Latent variable models are the recent popular approaches in statistical ecology to address such issue that has a similar framework to ordinary regression models. In this paper, we employed the poisson distribution for modeling count responses and a negative binomial distribution for more frequent zeros in observations. The implementation of a latent variable model, Generalized Linear Latent Variable Models (GLLVMs), was demonstrated on multi-species counts of endemic bird species collected in 37 different sites in Central Kalimantan, Indonesia. The main objectives were to study the effect of logging activities on abundance of endemic species and their interactions and to observe the habitat preference of certain species. Our study found that out of four endemic species, Alophoixus bres and Eurylaimus javanicus species were significantly affected by logging activities. The sign of parameters was negative indicating the logging activities in 1989 and 1993 bring significantly negative impacts on those species. The interaction created among species was strongly negative for major endemic species especially Alophoixus bres and Eurylaimus javanicus that prefer living in primary forest than in logging areas.