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Jl. Hendrik Timang, Gedung Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Palangka Raya Kampus UPR Tunjung Nyaho Palangka Raya, Kalimantan Tengah, 73112
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Jurnal Jejaring Matematika dan Sains
Published by Universitas Palangka Raya
ISSN : -     EISSN : 26861658     DOI : -
Core Subject : Science, Education,
Biochemistry, Genetics & Molecular Biology Chemistry Mathematics Physics
Jurnal Jejaring Matematika dan Sains dikelola oleh Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Palangka Raya Dengan e-ISSN 2686-1658, merupakan wadah bagi peneliti yang bergerak dibidang Sains khususnya Fisika, Kimia dan Biologi serta penelitian di bidang Matematika untuk dapat mempublikasikan hasil penelitian yang telah dilakukan. Fokus utama dalam jurnal ini adalah pengelolaan serta pemanfaatan potensi lokal khususnya di daerah Kalimantan untuk berbagai terapan dalam menjawab permasalahan masyarakat serta berkontribusi dalam perkembangan ilmu pengetahuan. Jurnal Jejaring Matematika dan Sains bersifat Open Access terbit setiap 6 bulan sekali dengan 8 artikel setiap terbitannya.
Arjuna Subject : Umum - Umum
Articles 72 Documents
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Bryophyta di Sekitar Kawasan Bandar Udara Internasional Syamsudin Noor Kalimantan Selatan: Bryophyta in the vicinity of Syamsudin Noor International Airport, South Kalimantan Yuninda Riyana; Sasi Gendro Sari; Gunawan Gunawan
Jurnal Jejaring Matematika dan Sains Vol. 2 No. 2 (2020): Edisi Desember 2020
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jjms.2020.v2.i2.402

Abstract

The diversity of mosses around the Syamsudin Noor international airport was never reported. This study aimed to reveal the variety of moss around the Syamsudin Noor International Airport area. This research uses the purposive sampling method. Measurement of environmental parameters includes air temperature, light intensity, humidity, and soil pH. Moss identification refers to the book A Handbook of Malesian Mosses volume 1 Sphagnales to Dicranales and A Handbook of Malesian Mosses volume 2 Leucobryaceae to Buxbaumiaceae. The moss morphological characters observed included the leaves, stems, and rhizoids using a stereomicroscope. The results showed that in Syamsudin Noor International Airport's vicinity, there are as many as five types of moss consisting: Pseudoracelopus acaulis, Hyophila apiculata Homalothecium lutescens, Ectropothecium falciforme, Fissidens atroviridis. The most dominant type of moss is Pseudoracelopus acaulis. The range of environmental parameter values ??is air temperature 28-34oC, light intensity 20-35 lux, humidity 74-84%, and soil pH 7. This study's results are preliminary data to determine the environmental change around Syamsudin Noor International Airport.
Identifikasi Nematoda Tanah Pada Perkebunan Sawi (Brassica juncea L.) di Kelurahan Landasan Ulin Utara, Banjarbaru, Kalimantan Selatan: Identification of Soil Nematodes in Mustard Plantation (Brassica juncea L.) in Landasan Ulin Utara Village, Banjarbaru, South Kalimantan Yusinta Oktaviani; Abdul Gafur
Jurnal Jejaring Matematika dan Sains Vol. 2 No. 2 (2020): Edisi Desember 2020
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jjms.2020.v2.i2.403

Abstract

Nematodes are microscopic worms belonging to the soil biota with high species diversity. Nematodes have different compositions in different types of soil and areas. This research is conduct to determine the presence and genus of soil nematodes found in mustard plantations in Landasan Ulin Utara Village, Banjarbaru, South Kalimantan. Soil samples are taken from community vegetable plantations with a depth of 0-20 cm around the mustard plant rhizosphere located in ??Jalan Kurnia and Jalan Sukamara, Landasan Ulin Utara Village, Banjarbaru. Extraction to separate nematodes from soil using the Whitehead & Hemming method (1965) and nematode fixation using the Seinhorst method (1959). Furthermore, the permanent nematode preparations were made for the identification stage by morphological observations and morphometric measurements. The identification results showed that the genera of nematodes found in the study site's soil samples were Iotonchus, Crustorhabditis, Ironus, and Xiphinema.
Dinamika Perilaku Orangutan Kalimantan (Pongo pygmaeus wurmbii) di Taman Nasional Sebangau Kalimantan Tengah: Behavior Dynamics of the Bornean Orangutan (Pongo pygmaeus wurmbii) in Sebangau National Park, Central Kalimantan Adventus Panda; Rosenda Chandra Kasih
Jurnal Jejaring Matematika dan Sains Vol. 2 No. 2 (2020): Edisi Desember 2020
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jjms.2020.v2.i2.404

Abstract

Sebangau National Park represents a relatively intact peatland ecosystem and is one of the pockets of the P.p. ssp. wurmbii crucial in the world. Anthropological studies state that Orangutans have a social unit in a complex structure. The logical consequence of this condition is that many observed behaviors attract and open up new knowledge related to space use patterns. This study aims to uncover the dynamics of orangutan behavior by presenting critical evidence. This research is a descriptive exploratory study, using a non-invasive observation method with a camera trap approach, in the Punggualas area, from January 2012 to January 2014. The results show confirmation of walking on the forest floor as a new part of the orangutan association of behavior. Based on this, the conclusion drawn is that the dynamics of orangutan behavior develop dynamically in response to changes in natural habitat conditions.
Sintesis dan Kararkterisasi Modifikasi Mikropartikel Magnetit (Fe3O4) Dalam Pemanfaatan Karat dengan Ekstrak Daun Ilalang (Imperata Cylindrica L): Synthesis and Characterization of Modified Magnetite Microparticles (Fe3O4) in Rust Utilization with Leaf Extract of Grass (Imperata cylindrica L) Annisaa Siti Zulaicha; Iwan Syahjoko Saputra; Indah Puspita Sari; Dicky Annas
Jurnal Jejaring Matematika dan Sains Vol. 2 No. 2 (2020): Edisi Desember 2020
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jjms.2020.v2.i2.405

Abstract

The synthesis of magnetite (Fe3O4) microparticles has been successfully carried out using rust and leaf extract of grass (Imperata cylindrica L). The purpose of this research is the synthesis and characterization of Fe3O4 microparticles using the Green Synthesis method. The UV-Vis results showed that the absorption peak was at a wavelength of 273 nm with an absorbance value of 0.75. FTIR analysis shows the shift of the peak at wave number 3356 cm-1 to 3290 cm-1 and the appearance of a new peak at wave number 500 cm-1 which is characteristic of the Fe-O-Fe functional group and indicates the formation of Fe3O4 microparticles. XRD results showed six specific peaks, which were crystallinity of Fe3O4 microparticles at position 2 theta 30.40 °, 35.70 °, 43.30 °, 53.80 °, 57.40 °, and 63.00 °. PSA analysis showed that the mean particle size was > 100 nm, and the PZC results showed a zeta potential of 20 mV. SEM results showed the morphology of Fe3O4 microparticles with 1000x magnification, and EDS analysis results showed Fe and O's elemental composition.
Potensi Nanoselulosa untuk Agen Slow Release Bahan Alam: Review : Potential of Nanocellulose for Slow-Release Agents of Natural Materials: Review Salsabila Aqila Putri; Ratih Febrianti; Sunardi Sunardi
Jurnal Jejaring Matematika dan Sains Vol. 2 No. 2 (2020): Edisi Desember 2020
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jjms.2020.v2.i2.406

Abstract

Cellulose is the most abundant polymer on earth consisting of ?-l, 4 glycoside rings bound to ?-D-glucose. Cellulose can be obtained from various wood and non-wood sources. Nanocellulose is one of the cellulose derivatives that have the potential to be developed as a carrier agent for natural materials to increase their bioactivity and bioavailability. Nanocellulose, which is cellulose with a nano-size (1-100 nanometer), has been proved as one of the functional material sources that have superior properties due to its attractive and excellent characteristics such as high aspect ratio, better mechanical properties, biocompatibility renewable, and abundance. This paper discusses the sources, production methods, and applications of nano cellulose as a slow-release agent for various natural materials to an applications of biomedical, cosmetic, and biotechnology.
Pemurnian Asap Cair Hasil Torefaksi Cangkang Sawit dengan Cara Destilasi dan Filtrasi dengan Arang Aktif: Purification of Liquid Smoke from Torrefaction of Palm Oil by Distillation and Filtration with Activated Charcoal Karelius Karelius; Lilis Rosmainar; Angeline Novia Toemon; Made Dirgantara
Jurnal Jejaring Matematika dan Sains Vol. 2 No. 2 (2020): Edisi Desember 2020
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jjms.2020.v2.i2.407

Abstract

The liquid smoke produced from the torrefaction process of oil palm shells has the potential to be used as an antiseptic base for hand sanitizer and disinfectant products. It is due to its high phenol and acetic acid content. Apart from phenol and acetic acid, there are many other compounds that must be separated in the hope of obtaining liquid smoke with the main components of acetic acid and phenol, which function as antibacterial agents. This research begins with the production of liquid smoke through a torrefaction process. The liquid smoke obtained is distilled at 150 oC and followed by adsorption with activated charcoal for the purification process. The pH value and acetic acid content in the purified liquid smoke were determined and analyzed using GC-MS to determine the chemical compounds. The pH value has decreased after the refining process by distillation, and activated charcoal is inversely proportional to the increase in acetic acid levels after purification. Based on GC-MS analysis results, it can be seen that the levels of acetic acid, phenol, propanoic acid, and 2-propanone increased after distillation. The loss of 1,2-Benzenediol and 2-Furancarboxaldechde compounds shows that distillation of liquid smoke at 150oC is effective for separating the heavy fraction of liquid smoke. Furthermore, the distilled liquid smoke is filtered using activated charcoal. The GC-MS analysis results showed that the filtration results with activated charcoal could increase acetic acid and propanoic acid levels in liquid smoke.
Pemodelan Protein dengan Homology Modeling menggunakan SWISS-MODEL: Protein Modeling with Homology Modeling using SWISS-MODEL Noer Komari; Samsul Hadi; Eko Suhartono
Jurnal Jejaring Matematika dan Sains Vol. 2 No. 2 (2020): Edisi Desember 2020
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jjms.2020.v2.i2.408

Abstract

The three-dimensional (3D) structure of proteins is necessary to understand the properties and functions of proteins. Determining protein structure by laboratory equipment is quite complicated and expensive. An alternative method to predict the 3D structure of proteins in the in silico method. One of the in silico methods is homology modeling. Homology modeling is done using the SWISS-MODEL server. Proteins that will be modeled in the 3D structure are proteins that do not yet have a structure in the RCSB PDB database. Protein sequences were obtained from the UniProt database with code A0A0B6VWS2. The results showed that there were two models selected, namely model-1 with the PDB code template 1q0e and model-2 with the PDB code template 3gtv. The results of sequence alignment and model visualization show that model-1 and model-2 are identical. The evaluation and assessment of model-1 on the Ramachandran Plot have a Favored area of ??97.36%, a MolProbity score of 0.79, and a QMEAN value is 1.13. Model-1 is a good 3D protein structure model.
Etnoekologi Masyarakat di Kawasan Hutan Jati Kabupaten Batang pada Pertanaman Tumpangsari
Jurnal Jejaring Matematika dan Sains Vol. 3 No. 1 (2021): Vol. 3 No. 1 (2021): Edisi Juni 2021
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jjms.2021.v3.i1.501

Abstract

Local knowledge is substantially the prevailing norm in a society that is believed to be true and becomes a reference in acting and behaving daily. Some people in the teak forest area in the Pecalungan Village, Batang Regency, make a living as farmers by utilizing the teak forest area. In managing the land of forest workers, according to the rules that have been passed down from generation to generation, the land management guidelines with these techniques are local knowledge that needs to be studied through ethnoecological studies. This study aims to describe the interaction of forest workers with the teak forest environment related to intercropping, namely cayenne pepper, long beans and corn with teak trees. The method used in this research is descriptive qualitative. Data collection using in-depth interviews with three informants (forest workers) using interview guidelines. Each interview activity was recorded. Data collection also uses the observation method and each activity is documented in the form of photos. The results showed that forest workers had knowledge of intercropping and applied it in their lives, namely the knowledge of selecting plant species suitable for teak; knowledge of time and soil characteristics suitable for plants; knowledge of making natural fertilizers; knowledge of cropping patterns; knowledge of plant maintenance; harvest time knowledge; and forest worker traditions. All cultivation activities carried out by forest workers are based on an understanding of the sustainability of teak forests.
Karakterisasi Pasir Pantai Citra Kabupaten Sukamara Menggunakan XRF dan XRD Budi Hariyanto; Lady M. Panggabean; Luqman Hakim
Jurnal Jejaring Matematika dan Sains Vol. 3 No. 1 (2021): Vol. 3 No. 1 (2021): Edisi Juni 2021
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jjms.2021.v3.i1.503

Abstract

Analysis of the elemental, oxide compounds, and phases composition of Citra beach sand, Sukamara Regency, was successfully carried out. The identification process of elemental and oxide compounds composition used XRF, while the phase identification used XRD analysis. XRF analysis shows that Si and SiO2 dominate the elemental and oxide compound composition by 95,6% and 98,1%, respectively. In addition, the qualitative analysis of the XRD pattern shows that the SiO2 in the Citra beach sand is quartz. These results provide information that Citra beach sand has excellent potential as SiO2 sources.
Efek Pairing Pada Isotop Zr dengan Potensial Interaksi Uniform 0.5 MeV Alpi Mahisha Nugraha; Nurullaeli Nurullaeli
Jurnal Jejaring Matematika dan Sains Vol. 3 No. 1 (2021): Vol. 3 No. 1 (2021): Edisi Juni 2021
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jjms.2021.v3.i1.504

Abstract

Pairing effect is a collective phenomenon in many body (fermion) nuclei, pairs of fermions will form a nucleon (boson) condition which is will decrease of the binding energy of nuclei (more negatively). One tool to see that in Zr-isotopes is using Relativistic Mean Field (RMF) model with combined BCS-theoretical. The pairing effect also represents of total interaction that occurs in outermost level nuclei after closed shell as 40Zr90. Those level are 2d5/2, 1g7/2, 3s1/2, 2d3/2, and 4s1/2. Effect pairing depending by matrix potential interaction which is in this paper we used uniform potential interaction 0.5 MeV. However, to obtain more accurate results, other methods to minimize the differences with the experimental results are clearly needed here.

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