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Ahmad Isro'il
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Jurnal Matematika dan Sains (JMS)
Published by Universitas Billfath
ISSN : 27752631     EISSN : 27750671     DOI : https://doi.org/10.55273/jms.v1i01
Core Subject : Science, Education, Engineering,
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Mathematics Physics
Jurnal Matematika dan Sains (JMS) adalah jurnal yang memuat artikel yang berkaitan dengan hasil penelitian Biologi, Matematika, Fisika, Kimia dan terapanya
Arjuna Subject : Umum - Umum
Articles 5 Documents
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Search results for , issue "Vol. 3 No. 1 (2023): Jurnal Matematika dan Sains (JMS)" : 5 Documents clear
EFEKTIVITAS TANAMAN SELEDRI (Apium graveolens L.) SEBAGAI TANAMAN REPELENSI POPULASI DAN SERANGAN Spodoptera litura F. PADA BUDIDAYA BAWANG MERAH (Allium ascalonicum L.) DI DESA PESANGGRAHAN Nur Habibatur Rohmah; Trisnan Alif; Fita Fitriatul Wahidah
Jurnal Matematika dan Sains (JMS) Vol. 3 No. 1 (2023): Jurnal Matematika dan Sains (JMS)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55273/jms.v3i1.183

Abstract

Spodoptera litura F. is a plant pest organism (OPT) on shallot plants that must be prevented so that shallots become productive. One way to prevent it is good and not to damage the environment is the use of tumangsari plants in the form of celery plants. The purpose of the study was to determine the effectiveness of celery (Apium Graveolens L.) as a pest population of Spodoptera Litura F. Repellent Plants in the Cultivation of Shallots (Allium Ascalonicum L.) in Pesanggrahan Village. This research is an experimental study using a randomized block design (RAK) pattern, one way ANOVA test data analysis technique with 5% significance and post hoc follow-up test with the smallest difference analysis. The results showed that celery plants were effective in suppressing Spodoptera litura F. pest attacks. The most effective treatment was 4 PTS treatment which could reduce Spodoptera litura F. population and zinc intensity of Spodoptera litura F., which were 1.66 and 0, respectively. 15%.
Pengaruh Aplikasi Beauveria Bassiana Terhadap Intensitas Serangan dan Mortalitas Larva Spodoptera frugiperda Pada Tanaman Jagung (Zea mays L.). Alfi Nurwahidah; Trisnan Alif
Jurnal Matematika dan Sains (JMS) Vol. 3 No. 1 (2023): Jurnal Matematika dan Sains (JMS)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55273/jms.v3i1.189

Abstract

S. frugiperda is a pest that attacks corn plants by eating young shoots/leaves. Leaves that are attacked by S. frugiperda will have many hoisting holes from the edges to the inside. If the attack of S. frugiperda is not immediately controlled, the losses will be crop failure. This study aims to determine the effectiveness of the use of several concentrations of B. bassiana on the intensity of pest attack and mortality of S. frugiperda larvae on maize. This research was conducted in the green house laboratory of Billfath University using a Completely Randomized Design (CRD) consisting of five treatments and four replications. The concentrations of B. bassiana used included K1= negative control (without application), K2= B. bassiana 5 ml/L, K3= B. bassiana 15 ml/L, K4= B. bassiana 25 ml/L and K5= positive control (Chemical insecticide Tiamethoxam 25%) 0.01 g/L. The results showed that the application of the fungus B. bassiana with a concentration of 25 ml/L was effective in controlling S. frugiperda pests on maize (Zea mays L.) which resulted in an attack intensity of 12.50% and larval mortality of 95%.. Keywords: entomopathogenic fungi, B. bassiana, S. frugiperda, corn
EKSISTENSI DAN KETUNGGALAN TITIK TETAP BERSAMA DI RUANG METRIK CONE (KERUCUT) UNTUK PASANGAN FUNGSI EKSPANSIF Indah Saniatur Rohma; Ahmad Khairul Umam
Jurnal Matematika dan Sains (JMS) Vol. 3 No. 1 (2023): Jurnal Matematika dan Sains (JMS)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55273/jms.v3i1.193

Abstract

The metric space is one of the most important designs in the field of functional analysis. In 2007 Huang and Zhang introduced the concept of a metric space into a cone metric space. They have proved several fixed point theorems for contraction functions using cone normality. The aim of this study is to examine the singularity of the common fixed points in the cone metric space for pairs of expansive functions. This research was conducted using the literature study method, namely by analyzing and outlining the designs already available in the literature. Furthermore, from this study it can be proven that the onto (surjective) function that satisfies the contractive condition in the cone metric space has a single fixed point together.
IDENTIFIKASI KUALITAS CADANGAN AIR TANAH DI KECAMATAN SEKARAN KABUPATEN LAMONGAN Rifko Harny Dwi Cahyo; Irasani Rahayu
Jurnal Matematika dan Sains (JMS) Vol. 3 No. 1 (2023): Jurnal Matematika dan Sains (JMS)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55273/jms.v3i1.194

Abstract

Groundwater is part of the hydrological cycle located below the earth's surface in the pores and crevices of rocks and soil. Water scarcity is increasing around the world and the need for water presence is increasing due to growing demands in several fields. Geologically, Sekaran District is composed of alluvium formations where this formation consists of kerakal, gravel, silt sand, clay, local fragments of fossil shells and mud. This study was conducted to determine the quality of groundwater reserves based on the value of solute solids. The method carried out by taking water samples in the wells of residents' houses in Sekaran District.After data processing was carried out, it was found that the quality of groundwater reserves based on the value of dissolved materials in Sekaran District ranged from 50-950 ppm and based on electrical conductivity values ranging from 100-2000 ?S/cm.
PENENTUAN BREAK EVEN POINT MELALUI REGRESI DAN NEWTON RAPHSON Fitroh Resmi; Aris Alfan; Nihaya Alivia Coraima Dewi
Jurnal Matematika dan Sains (JMS) Vol. 3 No. 1 (2023): Jurnal Matematika dan Sains (JMS)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55273/jms.v3i1.210

Abstract

Determining Break Even Point (BEP) in a production is an important thing to do. BEP analysis is used as a basis for profit planning. By knowing the Break Even Point (BEP), management can determine the amount of production or sales that must be made according to the profit target to be achieved. The research method used is literature review (literature study). Data collection techniques using secondary data taken from the Kaggle site. Data analysis uses descriptive statistics with the help of the python program. In certain cases, the production costs or selling cost is not a linear function. So it is necessary to form a mathematical equation through regression. The model is evaluated using MAE, MSE and R2. Determination of BEP is done by forming the equation of production costs and selling costs which are then solved by the Newton Raphson method. The results of this study are the regression method and Newton raphson can be used as an alternative in determining the BEP for cases that are not linear.

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