cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Made Dirgantara
Contact Email
dirgantaramade@mipa.upr.ac.id
Phone
+6285252823239
Journal Mail Official
-
Editorial Address
Jl. Hendrik Timang, Gedung Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Palangka Raya Kampus UPR Tunjung Nyaho Palangka Raya, Kalimantan Tengah, 73112
Location
Kota palangkaraya,
Kalimantan tengah
INDONESIA
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
 4   5   6   7   8 
Perbandingan Plastik Dari Material-Material Bioplastik Lilis Rosmainar; Dominikus Niholan Tukan; Mitha Deviyanti
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.i1.505

Abstract

Plastic is a polymer that has unique properties and is an extraordinary object. Polymers are materials consisting of molecules called monomers with homopolymer types. Polymers are commonly known in everyday life such as cellulose, protein, rubber, and other natural materials. The use of plastic is the impact of the development of the industrial world, technological and the increasing number of world population was increase. In Indonesian, the demand for plastic continues to increase with an average of 200 tons per year. In 2002 there were about 1,9 million tons of plastic waste, and in 2011 the amount of plastic waste increased to 2,6 million tons per year. Based on assumption of the Ministry of Environment (KLH), every day the Indonesian population can produce 0,8 kg of waste per person and if the total is 189 thousand tons of waste per day. 15% of waste produced is in the form of plastic waste or about 28,4 thousand tons per day. At first, natural polymer was used as materials for making tools and weapons. Monomers in the formation polymers are molecules that have double bonds or that have certain functional groups. Polymers are classified into natural polymers and synthetic polymers. Natural polymers such as cellulose, starch, chitin, chitosan, gelatin, dextran, alginate, pectin, guar gum and rubber are used in the manufacture of nanocomposites. Natural polymers exhibit properties such as purity, crystallinity, tensile strength, increase elasticity and have a large surface area. The conclusion is that the attractiveness of bioplastic has the same strength, but if it is added with other material, the conductivity will be stronger and better.
Konservasi In Vitro Kantong Semar (Nepenthes rafflesiana Jack.) dengan Metode Slow Growth Hanum Previaningrum; Abdul Qadir; Yupi Isnaini
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.i1.502

Abstract

Nepenthes rafflesiana Jack. is one of a unique plant because there is the pitcher on the tips of the leaves to trap insects. This uniqueness makes N. rafflesiana mostly taken from its natural habitat for sale. Big Explored from nature caused extinction and ecosystem habitats damaged. Efforts to prevent extinction through ex situ conservation by in vitro culture of N. rafflesiana with slow growth method. This study aims were to determine the effect of paclobutrazol on the growth of N. rafflesiana and to obtain the most suitable concentration of paclobutrazole for in vitro conservation of N. rafflesiana. The research was conducted at the Tissue Culture Laboratory of the Research Center for Plant Conservation and Botanical Gardens from January to April 2020. The experiment was carried out in a Completely Randomized Group Design with a single factor, namely the concentration of paclobutrazol: 0, 1, 3 and 5 ppm. The results showed that the best concentration of paclobutrazol for in vitro conservation of N. rafflesiana was 5 ppm which could inhibit the growth of stem height and number of leaves and could maintain the green color of the leaves.
Pengaruh Elektromagnetik Exchange pada Charge-Radius Isotop Ca: Electromagnetic Exchange Effect in Charge-radii Ca-Isotopes Alpi Mahisha Nugraha; Nurullaeli
Jurnal Jejaring Matematika dan Sains Vol. 3 No. 2 (2021): Vol. 3 No. 2 (2021): Edisi Desember 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.i2.601

Abstract

The charge-radii nuclei is distribution of the coulomb effect but respectively isn’t distribution of proton due to affected by the scattering of electrons in nuclei and is an observable quantity in laboratory. In this research, we use RMF model in Ca-isotopes with and without electromagnetic exchange form, and be compared with experiment from IAEA. With a fairly good accuracy (above 99%) on the binding energy, it shows that this model is powerful. Unfortunately, at the correlation to charge-radius, even with good enough accuracy (above 97%), it still doesn't show electromagnetic exchange corellation. An analysis of all RMF forms is needed to get a better correlation to the charge-radii nuclei clearly here.
Uji In Silico Ellagic Acid sebagai Agen Anti Hiperpimentasi: Uji In Silico Ellagic Acid sebagai Agen Anti Hiperpimentasi Ni Kadek Sita Febriyanti
Jurnal Jejaring Matematika dan Sains Vol. 4 No. 1 (2022): Vol. 4 No. 1 (2022): Edisi Juni 2022
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.v4.i1.704

Abstract

Hyperpigmentation is a skin problem that occurs due to excess melanin synthesis. One of the factors that cause hyperpigmentation is continuous exposure to UV rays on the skin. Melanin biosynthesis is catalyzed by the melanogenic enzyme tyrosinase. Melanin synthesis can be inhibited by using anti hyperpigmentation agents, one of which is sourced from natural ingredients. Ellagic acid is a phenolic compound that is widely found in plants and has antioxidant activity so that it can inhibit hyperpigmentation through ROS inhibition mechanism. This study aims to determine the potential of ellagic acid in inhibiting the tyrosinase enzyme which will be compared with its native ligand in silico. The in silico test was carried out by molecular docking with the steps of preparation and optimization of ellagic acid using Hyperchem 8, preparation of the tyrosinase enzyme using Chimera 1.11.1, validation and docking using AutoDockTools 1.5.6 equipped with Autodock 4 and Autogrid 4. Molecular docking methods can be declared valid if the value of RMSD (root mean square distance) obtained is not more than 3 . The results of the molecular docking test showed that ellagic acid had an affinity for the tyrosinase enzyme. The bond energy values ​​obtained indicate that the affinity of ellagic acid is stronger and more stable for tyrosinase compared to native ligands. The bond energy value between ellagic acid and tyrosinase is -5.78 kcal/mol. Meanwhile, the binding energy between tyrosinase and its native ligand is -4.83 kcal/mol, so that ellagic acid has the potential as an anti hyperpigmentation agent through the mechanism of inhibition of tyrosinase enzyme activity.
- REVIEW ARTIKEL : Uji Iritasi Sediaan Topikal dari Tumbuhan Herbal: - Ni Komang Sumarni
Jurnal Jejaring Matematika dan Sains Vol. 4 No. 1 (2022): Vol. 4 No. 1 (2022): Edisi Juni 2022
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.v4.i1.703

Abstract

Irritation is an inflammatory phenomenon that occurs on the skin caused by the presence of foreign compounds on the skin. Factors that can cause irritation include contact time, penetration rate, area, and the level of toxicity of the materials used. Formulas and active substances used in a pharmaceutical preparation with a topical route can trigger side effects such as irritation of the skin. Thus, it is necessary to have a safety test that aims to meet product requirements before being marketed to the wider community. One of the safety tests that can be done is skin irritation test. Irritation testing can be carried out using four methods, namely draize, acute dermal, slug irritation test, and human patch test. The results of the study of 25 articles showed that only 16 preparations with herbal plant active substances had the best irritation index which was indicated by the irritation index (0.00) which means that the preparation did not irritate the skin. These plants are pomegranate peel, binahong leaves, jeruju leaves, red ginger, pinang seed husk, starfruit leaves, banana peel, clove flowers, seeds of papaya, shallot peel, ruruhi rind, sappan wood, pare fruits, eggplant peel, bay leaves, and longan leaves.
- REVIEW ARTIKEL: Penyembuhan Luka Insisi Sediaan Topikal dari Tanaman Herbal: - Putu Yunda Agung Fajarningrum
Jurnal Jejaring Matematika dan Sains Vol. 4 No. 1 (2022): Vol. 4 No. 1 (2022): Edisi Juni 2022
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.v4.i1.705

Abstract

An incision wound is a wound made using a scalpel to open deeper tissues or organs, taking into account the size, location, and purpose of the wound. Many herbal plants have been reported to have wound healing activity and can be used as alternative therapies. This review aims to determine the potential of plants that have wound healing activity which is focused on studying herbal plants that have wound healing activity in vivo. The results of the study from 30 articles that plants that have wound healing activity are Dewa leaves, gotu kola leaves, tiger grass, jatropha, binahong leaves, earrings leaves, red betel leaves, african leaves, aloe vera leaves, jasmine leaves, kecombrang flowers, jengkol leaves, meniran leaves, broken bones, betadine leaves, kenikir leaves, Java wood stems, bitter melon leaves, Indian almond leaves. Herbal plant preparations of ethanol extract gel from red castor leaves (Jatropha gossypifolia Linn) gave the optimum effect in wound healing in rabbits at a concentration of 3%.
Potensi Clitoria ternatea sebagai Upaya Terapi Preventif Penyakit Alzheimer : Kajian Literatur: Potensi Clitoria ternatea sebagai Upaya Terapi Preventif Penyakit Alzheimer Lina Kurniasari; N. P. Ayu Wulandari Dewi
Jurnal Jejaring Matematika dan Sains Vol. 4 No. 1 (2022): Vol. 4 No. 1 (2022): Edisi Juni 2022
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jjms.2022.v4.i1.701

Abstract

One of degenerative disease on elderly people is dementia. Dementia is characterized by memory loss. Antioxidant is one of the pharmacological therapies that use to treat Alzheimer’s disease. Clitoria ternatea is one of plant that contains antioxidant. The purpose of writing this article is to provide information about the benefits of Clitoria ternatea in curing and preventing alzheimer’s disease. This method is carried out by studying literature from several related journals. The result showed that Clitoria ternatea is proven to be able to treat and prevent Alzheimer’s disease
Studi In Silico Theaflavin sebagai Agen Anti-Photoaging: Studi In Silico Theaflavin sebagai Agen Anti-Photoaging Putu Dewi Febyani; I Gede Bayu Krisnayana
Jurnal Jejaring Matematika dan Sains Vol. 4 No. 1 (2022): Vol. 4 No. 1 (2022): Edisi Juni 2022
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jjms.2022.v4.i1.702

Abstract

Photoaging is skin aging due to extrinsic factors. Photoaging occurs due to excessive degradation of collagen caused by excessive exposure to UV radiation. Excessive UV exposure triggers induction of MMP-1 activities that actively degrade collagen in skin. Theaflavin is known to have pharmacological activity related to anti-photoaging. This study aims to determine the mechanism of MMP-1 inhibition by theaflavin, a polyphenol compound with high antioxidant activity, using in silico molecular docking. Molecular docking in silico is carried out in several step such as optimization of the 3D structure of theaflavin compounds, preparation of target protein, method validation, and docking between optimized theaflavin compounds and the MMP-1 enzyme (PDB ID: 966C) which refers to the binding energy parameter where The lower the binding energy value, the stronger and more stable the bond between theaflavin compound and the MMP-1 enzyme will be. The results obtained in the form of an binding energy between theaflavin compound with the MMP-1 enzyme, which is -10,56 kcal/mol, while the binding energy native ligand with the MMP-1 enzyme is -11,03 kcal/mol. This energy indicates that theaflavin compounds have potential as anti-photoaging agents because they are able to inhibit the MMP-1 enzyme.
MANFAAT DAN PENGEMBANGAN TEKNOLOGI UMBI PORANG (AMORPHOPHALLUS MUELLERI BLUME)MELALUI METODE PENGERINGAN: BENEFITS AND TECHNOLOGY DEVELOPMENT OF PORANG BULBS (AMORPHOPHALLUS MUELLERI BLUME) THROUGH DRYING METHOD Putu Ayu Viona Serapin Putri
Jurnal Jejaring Matematika dan Sains Vol. 4 No. 2 (2022): Vol. 4 No. 2 (2022): Edisi Desember 2022
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jjms.2022.v4.i2.708

Abstract

Porang tubers are one of the most popular plant cultivations in the international market. The benefits and advantages of pora ng tuber cultivation make porang tubers one of the strengths to be able to reduce imports. The benefits of this cultivation will certainly be felt by farmers. Because of the great benefits felt, it would be very appropriate if porang tubers would be strongly assoc iated with technology, especially in the drying method. This study aims to be able to s how descriptively the method of drying porang tubers from conventional things that still depend on solar heat to technology-based to the creation of a drying machine. The application of technology will certainly facilitate the community in accelerating the production of porang tubers. Optimization to achieve time efficiency is certainly the biggest advantage. Until finally the factors inhibiting production will be minimized. Keywords: Porang tubers, drying machine, solar heat
Molecular Docking Senyawa α-mangostin sebagai Antiinflamasi secara In Silico Ni Kadek Ayu Arik Setyawati; I Wayan Martadi Santika; Putu Sana Yustiantara
Jurnal Jejaring Matematika dan Sains Vol. 4 No. 2 (2022): Vol. 4 No. 2 (2022): Edisi Desember 2022
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jjms.2022.v4.i2.707

Abstract

Inflammation is the body's physiological response to infection and tissue injury. Inflammatory mediators, especially cytokines such as tumor necrosis factor-alpha (TNF-α), interleukin-1 beta (IL-1β), and interleukin-6 (IL-6) are cytokines involved in acute inflammation. Inflammation can occur when these inflammatory mediators interact with each other. α-mangostin is one of the xanthone that found in the pericarp of mangosteen which has anti-inflammatory activity. The aim of this study was to determine the mechanism of inhibition of ICE protein by α-mangostin in silico with molecular docking. Molecular docking in silico was carried out in several stages, such as preparation and optimization of the 3D structure of α-mangostin, preparation of the target protein, validation of the molecular docking method, and docking of α-mangostin compounds on ICE which refers to the parameters of the bond energy and the type of bond formed. If the bond energy value between the test compound and the target protein is lower, the bonds formed will be stronger and more stable. The results of molecular docking of α-mangostin to ICE protein is the between α-mangostin to ICE protein with a binding energy is about -4,29 kkal/mol. The negative binding energy indicates that α-mangostin has anti-inflammatory activity with an ICE inhibitory mechanism.

Page 6 of 8 | Total Record : 72

 4   5   6   7   8 

Filter by Year

2019 2023


Reset
Filter By Issues
All Issue Vol. 5 No. 1 (2023): Jurnal Jejaring Matematika dan Sains Vol. 4 No. 2 (2022): Vol. 4 No. 2 (2022): Edisi Desember 2022 Vol. 4 No. 1 (2022): Vol. 4 No. 1 (2022): Edisi Juni 2022 Vol. 3 No. 2 (2021): Vol. 3 No. 2 (2021): Edisi Desember 2021 Vol. 3 No. 1 (2021): Vol. 3 No. 1 (2021): Edisi Juni 2021 Vol. 2 No. 2 (2020): Edisi Desember 2020 Vol. 2 No. 1 (2020): Edisi Oktober 2020 Vol. 1 No. 2 (2019): Edisi Desember 2019 Vol. 1 No. 1 (2019): Edisi Juni 2019 Vol 1 No 1 (2019): Jurnal Jejaring Matematika dan Sains