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Muhammad Ridwan
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Budapest International Research in Exact Sciences (BirEx Journal)
Published by Budapest International Research and Critics University Journal
ISSN : 26557835     EISSN : 26557827     DOI : DOI: https://doi.org/10.33258/birex
Core Subject : Science, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Physics Transportation
Budapest International Research in Exact Sciences (BirEx-Journal) is a peer reviewed journal published in January, April, July, October welcome research paper in Medical Science, Agriculture Science, Biological Science, Engineering Science and other related areas and it is published in both online and printed version
Arjuna Subject : Ilmu Material (semua kategori) - Ilmu Material (Lain-Lain)
Articles 278 Documents
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Malesia Bryophytes Diversity Ferdinand Susilo; Muhammad Komarul Huda; Hanifah Mutia Z.N. Amrul
Budapest International Research in Exact Sciences (BirEx) Journal Vol 2, No 1 (2020): Budapest International Research in Exact Sciences, January
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birex.v2i1.803

Abstract

Bryophyte is a division of plants that lives on land, generally it is green and reproduces through spores, has ecological and economic functions, and plays an important role in forest ecosystems. It spreads out almost in all parts of the earth with different characters in each group. It is divided into 3 groups, namely liverwort, true moss, and hornwort, which are phylogeny and true liverwort is in the same lineage. The number of bryophytes species is around 18000 with the largest distribution area of bryophyte diversity in tropical and subtropical latitudes, such as the Malesia region which includes Malaysia, Indonesia, Timor Leste, Papua New Guinea, the Philippines, and Brunei. Various studies were carried out related to the diversity of bryophyte, especially in the Malesia region, and found various types including new species, new records, and new characters.
Student’s Self-Assessment Regarding the Clinical Skills in Forensic Medicine Taufik Suryadi; Kulsum Kulsum
Budapest International Research in Exact Sciences (BirEx) Journal Vol 2, No 2 (2020): Budapest International Research in Exact Sciences, April
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birex.v2i2.984

Abstract

In the learning process in forensic medicine clinical rotation, a measurable and standardized evaluation system is needed. The preliminary survey is undertaken to assess the ability of the student in clinical skills in rotation of forensic medicine. This survey was carry out in the Faculty of Medicine, Universitas Syiah Kuala, Banda Aceh, Indonesia. The instrument used in this study was a questionnaire. Data was analyzed is done manually. As many as 81 medical students were included in the survey (20 male and 61 female). The average student score is based on survey 3.40, while the average academic value was given by the lecturer is 3.49. The survey was invalid with sensitivity 0.519, and specificity 0.593 (value<0,6). In this survey, found the validity of student self-assessment not valid in determining the ability of clinical skills, it is influenced by several factors of objectivity and subjectivity of assessment both in terms of students and lecturers. In general, student’s clinical skills in accordance with the achievement of competency in clinical rotation of forensic medicine.
The Design and Qibla Direction by Using the Hmc 5883 L Sensor as a Compass Rhi in the UMSU Science Laboratory (OIF) Sudirman Lubis; Faisal Irsan Pasaribu; Wawan Septiawan Damanik; Munawar Alfansury Siregar; Irpansyah Siregar; Edi Sarman Hasibuan
Budapest International Research in Exact Sciences (BirEx) Journal Vol 2, No 3 (2020): Budapest International Research in Exact Sciences, July
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birex.v2i3.1077

Abstract

The level of accuracy of a measuring instrument is expected to be good because it is expected to provide information that can be used as a reference and benchmark in research and application in public life. The use of a compass measuring device in determining the direction of the wind and the location of the magned earth may vary from year to year such as the compass analog and digital. Both offer good reading results with the same way of working utilizing magnetic poles north and south as a reference point. HMC 5883L sensor is one measuring tool that is able to detect the direction of the compass with the same way of working from analog and digital compasses. By using Arduino Uno as a microcontroller as a central control that is able to change the information received from the HMC 5883L sensor into an easy-to-understand form of data. Qibla is more accurate by comparing the reading results of both. The results of the HMC 5883L compass sensor reading will be visualized in the form of the pointer, the pointer light and will be changed in numerical form. All data changed in the form of work is the result of an order from Arduino Uno received from the HMC 58883L sensor. A total of eight LED lights are used as a pointer to the compass and are connected with data obtained from the sensor.
Major Crop Combination and Diversification Regions in Kashmir Valley Javaid Ahmad Andrabi
Budapest International Research in Exact Sciences (BirEx) Journal Vol 1, No 1 (2019): Budapest International Research in Exact Sciences, January
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birex.v1i1.135

Abstract

Agriculture is the main source of revenue in Kashmir Valley as the bulk of population survives or bout 70% of the population survives on it. The Valley is geographically divided in to three zones like flood plains, Kerewas and Mountains. Variations in altitude, soil and climate has closely influenced the agricultural practices among various districts of Kashmir valley. In the present paper an attempt has been made to study crop combination region, cropping pattern and crop diversification in Kashmir valley.
Giving Lemna Minor and Mud to the Growth of Tubifex sp. Mahendra, Mahendra; Damara, Doni; Nufus, Mursidatun; Putri, Vira Riana
Budapest International Research in Exact Sciences (BirEx) Journal Vol 1, No 3 (2019): Budapest International Research in Exact Sciences, July
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birex.v1i3.339

Abstract

This study aims to determine the effect of the use of a combination of lemna minor substrates and mud on the biomass of the population of Tubifex sp. This research is experimental, with a completely randomized design (CRD), with five levels of treatment P1 = 100% (lemna minor ) + 2,000 gr (mud), P2 = 75% (lemna minor ) + 2,000 gr (mud), P3 = 50 % (lemna minor ) + 2,000 gr (mud), P4 = 25% (lemna minor) + 2,000 gr (mud), P5 = 0% (lemna minor) + 2,000 gr (mud). Data obtained from research results in analysis of variance (ANOVA) and in further testing with the Smallest Significant Difference test. The main parameters observed were the number of population and biomass of Tubifex sp. The results of the study showed that the combination of Lemna minor substrate and mud significantly (p <0.05) on the growth of biomass and the population of Tubifex sp. The best results were found in the treatment with the treatment formulation P1 = 100% (lemna minor ) + 2,000 gr (mud) which produced a population of 6,250 ind / gr and biomass 8.60 gr / m2.
The Effectiveness of Endomycorrhiza Species on the Growth of Barangan Banana Seedlings Asmah Indrawati; Suswati Suswati
Budapest International Research in Exact Sciences (BirEx) Journal Vol 1, No 4 (2019): Budapest International Research in Exact Sciences, October
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birex.v1i4.479

Abstract

Utilization of various species of arbuscular mycorrhizal fungi in Barangan banana nurseries has been carried out in a wire house. The aim of the study was to obtain data on the effectiveness of Barangan banana seedling growth after various FMA species were applied. This research was conducted with a Completely Randomized Design with mycorrhizal (A) treatment consisting of 4 levels, namely: A0. Without mycorrhizae, A1. Glomus type 1; A2. Acaulospora type 4 and A3. Glomus fasciculatum (FMA isolate collection of Prof. Dr. Ir. Eti Farda Husin, MS) with 5 replications. A total of 10 g of FMA inoculants were separately put into the acclimatization media of the Barangan plantlet in the form of a sterilized charcoal and sand mixture (2: 1). during acclimatization. The results of this study indicate that seedling growth is better in the treatment of FMA applications than in controls. Acaulospora type-4 FMA isolates; Glomus type-1 and G. fasciculatum can increase the height of Barangan banana seedlings at a rate of: 3.117%; 2,831% and 2,328% while the rate of leaf growth is better in Glomus type-1 applications (1,865%), G. fasciculatum (1,709%) and Acaulospora type 4 (1,412 and control (1,174%).
Expert System Software to Identify Damages Cars with Forward Chaining Method Husaini Husaini; Yuswardi Yuswardi
Budapest International Research in Exact Sciences (BirEx) Journal Vol 2, No 1 (2020): Budapest International Research in Exact Sciences, January
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birex.v2i1.701

Abstract

This study shows for the development of expert system software to identify damage to the car that can display information in the form of a solution of the damage. This system was developed using PHP and MySQL software. This system works to be able to present damage identification information on the car that can provide the most actual solution to the consul, as well as present a detailed report when consultations have been made. The purpose of this expert system is to facilitate car users in knowing damage to cars, as well as facilitate car users in identifying damage to cars, so they can update knowledge in the form of symptoms and damage. The diagnosis made by the counselor is: a counselor registers before making the diagnosis. Then answer the questions that have been provided. Furthermore, after making a diagnosis, the results can be printed through the printer.
The Effect of Dosage, Number of Pesticides, Personal Protective Equipment Usage, Direction, Time, Duration and Spraying Frequency of Kolinesterase Content on Farmers in Gawu-Gawu Bouso Village North Gunungsitoli Sub-District, Gunungsitoli City Eva Valentine Br. Hotang; Taufik Ashar; Wirsal Hasan
Budapest International Research in Exact Sciences (BirEx) Journal Vol 2, No 2 (2020): Budapest International Research in Exact Sciences, April
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birex.v2i2.903

Abstract

Pesticide poisoning occurs when there is a certain amount of pesticide material that reaches and / or enters the body. Pesticide poisoning is influenced by many factors including dose, amount, time, length, direction and frequency of spray. This study was an observational study using a cross sectional design that aims to determine the effect of dosage, amount of pesticides, PPE usage, direction, time, duration and frequency of spraying on the level of cholesteresterase farmers in Gawu-Gawu Bouso Village, Gunungsitoli Utara District, Gunungsitoli City. The population includes farmers and farm laborers who spray pesticides in Gawu-Gawu Bouso Village, Gunungsitoli Utara District with 44 research samples. Data analysis uses univariate, bivariate (chi-square test) and multivariate analysis with logistic regression. The results of the bivariate analysis showed that there were 6 independent variables that had a significant relationship with cholinestrase namely dose, amount, direction of spray, time, duration and frequency of spray. This is indicated by the significance value of the 6 independent variables is <0.05. Multivariate test results showed that there were 4 of the 7 independent variables that had a significant effect on cholinesterase ie dose, amount, time, and frequency of spray) (p<0.05) while the other 3 variables namely personal protective equipment, spray direction and duration had no significant effect . The most influential variable on colliniestarase is dose.
The Flexural Strength of Artificial Laminate Composite Boards made from Banana Stems Achmad Jusuf Zulfikar
Budapest International Research in Exact Sciences (BirEx) Journal Vol 2, No 3 (2020): Budapest International Research in Exact Sciences, July
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birex.v2i3.1070

Abstract

Wood is a forest product that is used as raw material for building construction. The increase in demand for wood causes damage to the environment and the ecosystem. Therefore, investigation is needed to find alternative materials that can replace the old wood. On the other hand, Indonesia is a banana tree producing country which in every harvest produces abundant waste of banana stems. In this study, an investigation will be made of artificial wood from banana stems. The purpose of this investigation is to obtain the flexural strength of artificial wood produced from banana tree trunks. Banana stems will be treated first in 1M NaOH solution. Making artificial wood using special printing tools and adhesives of acetate type. Flexural testing uses the ASTM D790 test standard. The results obtained that the average flexural strength of artificial wood is 3.14 MPa. This value is still much smaller when compared to the flexural strength of commercial wood, which is 87.21. However, artificial wood has the ability to absorb the load provided is better than commercial wood.
Study of Coffee Plant Propagation (Coffea spp) with Leaf Cut Budiman Setiawan; Ahmad Rafiqi Tantawi; Azhari Azhari
Budapest International Research in Exact Sciences (BirEx) Journal Vol 1, No 1 (2019): Budapest International Research in Exact Sciences, January
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birex.v1i1.130

Abstract

Coffee (Coffea spp) is mostly useful as a beverage is not foreign not only for the nation of Indonesia, but also for various nations in the world. One way to increase yields and extend the life of coffee plants is by pruning. From the results of this pruning of course produces quite a lot of leaves are wasted, so it takes science and technology cultivation of coffee plants by utilizing the coffee leaves. In this study will discuss about the Study of Coffee Plant Propagation (Coffea spp) With Leaf Cut. The research was conducted in March - June 2011 in Galang Suka Village, Galang Subdistrict, Deli Serdang Regency. This research was conducted by Randomized Complete Design (RAL) Factorial with two factors. The first factor is a coffee leaf (D) consisting of two levels of treatment. D1 = The base of the leaf without the petiole, D2 = Leaf tip. The second factor is Nutrition (N) which consists of six levels of treatment. N0 = Rotone-F 200 mg / l, N3 = Growtone 200 mg / l, N4 = Growtone 300 mg / l, N5 = Dekamon 2 cc / 10 liters. From the results of the study it can be concluded that leaf tip (D2) cuttings given Growtone 200 mg / l (N3D2) survive until the end of the study, as well as leaf tip (D2) cuttings given Dekamon 2cc / 10 l (N5D2) although the numbers are only 1.23 and 1.06 and N3D2 is better than N5D2.

Page 9 of 28 | Total Record : 278

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