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All Journal Rayah Al Islam : Jurnal Ilmu Islam Yustisi: Jurnal Hukum dan Hukum Islam Warta Pendidikan : Jurnal Pendidikan dan Budaya Britain International for Linguistics, Arts and Education Journal (BIoLAE Journal) DECODE: Jurnal Pendidikan Teknologi Informasi Bulletin of Community Engagement Economic Reviews Journal Asketik: Jurnal Agama dan Perubahan Sosial QANUN: Journal of Islamic Laws and Studies Research Horizon Economics, Business, Management, & Accounting Journal Limits: Journal of Mathematics and Its Applications
Miswanto
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Religion Arts Humanities Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Social Sciences Other

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Review of the Theory Maṣlaḥah of Program In Vitro Fertilization Through Surrogacy Sudistina, Sillah; Hidayat, Eko; Miswanto
Research Horizon Vol. 5 No. 3 (2025): Research Horizon - June 2025
Publisher : LifeSciFi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54518/rh.5.3.2025.911-920

Abstract

Knowledge and technology in the field of medicine are developing rapidly and have a significant impact on humanity. One of these advancements is the discovery of a new method to address the issue of couples who are unable to conceive naturally, known medically as in vitro fertilization. This study analyzes the in vitro fertilization program through surrogacy from the perspective of the maṣlaḥah theory in Islamic law. The aim of this research is to assess the compatibility of this practice with maqāṣid al-syarī’ah, particularly in preserving lineage (ḥifẓ al-nasl). Using a literature review method with a qualitative approach, the study finds that surrogacy offers benefits for couples who cannot have children naturally. However, the practice also carries significant risks to the clarity of lineage (nasab), which could lead to negative consequences within the Islamic family law system. Based on the maṣlaḥah theory, surrogacy is more likely to fall under the category of maṣlaḥah mulghāh (rejected benefit), because, although it has potential advantages, its negative impacts outweigh the benefits. Therefore, in the context of Islamic law, this practice is not acceptable as it contradicts the principles of maqāṣid al-syarī’ah in preserving the purity of nasab.
Pengaruh Kualitas Produk terhadap Keputusan Pembelian di Toko Moro Bootwear Jambi Miswanto; Ade Irma; Endah Trikurniasih
Ebisma (Economics, Business, Management, & Accounting Journal) Vol. 5 No. 1 (2025): Economics, Business, Management, & Accounting Journal (Ebisma)
Publisher : Haka Vyza Media

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61083/ebisma.v5i1.69

Abstract

This study aims to determine the extent to which product quality influences consumer purchasing decisions at the Moro Bootwear Store in Jambi. The approach used was quantitative, using descriptive and associative methods. The sampling technique used was accidental sampling, with 68 respondents, and data processing was performed using IBM SPSS version 25 software. The results of the validity and reliability tests indicated that all instruments used in the questionnaire were valid and reliable. The Pearson correlation test yielded a value of 0.712, indicating a strong and positive relationship between product quality and purchasing decisions. The coefficient of determination (R²) of 0.507 indicates that 50.7% of the purchasing decision variables can be explained by product quality. Furthermore, the t-test results showed a calculated t-value of 8.240 with a significance level of 0.000 <0.05, indicating that product quality significantly influences purchasing decisions. Based on these results, it can be concluded that product quality plays a significant role in influencing consumer purchasing decisions. Therefore, the manager of the Moro Bootwear Jambi Shop is advised to continue to improve product quality aspects such as design, comfort, durability, and raw materials in order to maintain consumer loyalty and increase business competitiveness.
Implementasi Praktik (Rahn) Gadai Motor dalam Perspektif Hukum Ekonomi Syariah: Studi Kasus di Gg Waru IV Sukabumi Indah, Kota Bandar Lampung Uswatun Hasanah; Miswanto; Susi Nurkholidah; Wulan Fitri Utami; Devina Putri Azara
Economic Reviews Journal Vol. 4 No. 3 (2025): Economic Reviews Journal
Publisher : Masyarakat Ekonomi Syariah Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56709/mrj.v4i3.749

Abstract

Pawn is a process whereby an item deemed valuable according to religious law is used as collateral for a debt. In this way, individuals can borrow money or utilize a portion of the item. In Indonesia, the practice of pawning is very common because it is easy and simple to implement. However, people still do not understand the correct rules regarding pawning in Islam. The research conducted by the author falls into the category of field research. The approach chosen is juridical sociological. Interviews were used to collect primary data, while secondary data were obtained from library sources, such as books, journals, theses, and other references related to this research. The data collection methods applied include observation, interviews, and documentation. The focus of this research is to: 1) Identify how the vehicle pawn transaction process in Gg Waru IV Sukabumi Indah, Bandar Lampung City? 2) And to find out whether this pawn transaction is in accordance with the principles of Sharia economic law?
TINJAUAN HUKUM KELUARGA ISLAM TERHADAP FENOMENA FRIEND WITH BENEFIT DI KALANGAN REMAJA DI KOTA BANDAR LAMPUNG Sari, Shara Sandra; Hidayat, Eko; Miswanto
QANUN: Journal of Islamic Laws and Studies Vol. 3 No. 2 (2025): QANUN: Journal of Islamic Laws and Studies
Publisher : ASIAN PUBLISHER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58738/qanun.v3i2.828

Abstract

Fenomena Friend with benefit (FWB) di kalangan remaja di Kota Bandar Lampung merupakan bentuk pergeseran nilai dalam memahami hubungan antara laki-laki dan perempuan. Friend with benefit adalah hubungan pertemanan yang disertai aktivitas seksual tanpa komitmen emosional atau ikatan pernikahan. Penelitian ini bertujuan untuk menganalisis fenomena tersebut dari perspektif hukum keluarga Islam serta menggambarkan praktik dan alasan remaja terlibat dalam hubungan friend with benefit. Penelitian ini menggunakan pendekatan kualitatif deskriptif dengan metode pengumpulan data melalui wawancara terhadap delapan informan berusia 18–24 tahun. Hasil penelitian ini menunjukkan bahwa beberapa faktor, seperti tekanan lingkungan, kebutuhan biologis, dan penolakan komitmen, mendorong remaja terlibat dalam hubungan friend with benefit (FWB). Menurut perspektif hukum keluarga Islam, praktik FWB ini dianggap menyimpang dan diharamkan karena bertentangan dengan prinsip pernikahan yang sah. Pernikahan adalah satu-satunya cara yang dibenarkan dalam Islam untuk memenuhi kebutuhan biologis dan emosional. Oleh karena itu, edukasi moral dan agama dari orang tua, sekolah, dan tokoh agama sangat penting untuk mencegah meluasnya fenomena ini.
The Application of The Steepest Gradient Descent for Control Design of Dubins Car for Tracking a Desired Path Miswanto; I. Pranoto; H. Muhammad; D. Mahayana
Limits: Journal of Mathematics and Its Applications Vol. 4 No. 1 (2007): Limits: Journal of Mathematics and Its Applications Volume 4 Nomor 1 Edisi Mei
Publisher : Pusat Publikasi Ilmiah LPPM Institut Teknologi Sepuluh Nopember

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Abstract

In this paper, we consider the control design of the Dubins car system to track a desired path. We design the control of the Dubins car system using optimal control approach. The control of the Dubins car system is designed for tracking the desired path. Instead of the usual quadratic cost function, a special type of cost functional which includes a tracking error term will be considered. By this special cost functional, the minimum tracking error of path of the Dubins car toward a desired path using Pontryagin Maximum Principle is obtained. The analytical solution of the Hamiltonian system is di±cult to obtain. So, a numerical solution with the steepest gradient descent method is proposed. The numerical results are given at the last section of this paper.
Analisis Model Matematika Orde Fraksional Penyebaran Worm Berbasis Wi-Fi Pada Smartphone Mohammad Imam Utoyo; Er Ayu Nurafifah; Miswanto
Limits: Journal of Mathematics and Its Applications Vol. 15 No. 2 (2018): Limits: Journal of Mathematics and Its Applications Volume 15 Nomor2 Edisi Nop
Publisher : Pusat Publikasi Ilmiah LPPM Institut Teknologi Sepuluh Nopember

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Abstract

Worm merupakan suatu program atau software (perangkat lunak) yang memiliki kemampuan mereplikasi diri dan dapat menyebabkan kerusakan pada jaringan komputer. Pada umumnya worm menginfeksi jaringan komputer, namun seiring dengan perkembangan teknologi menyebabkan munculnya worm jenis baru yaitu worm berbasis Wi-Fi (Wireless Fidelity) yang dapat menginfeksi smartphone. Salah satu upaya penanggulangan worm adalah dengan menambahkan sebuah node baru pada jaringan Wi-Fi yaitu node karantina untuk meminimalisir penyebaran worm pada smartphone. Model matematika penyebaran worm berbasis Wi-Fi  pada smartphone dapat digunakan untuk mengetahui dinamika penyebaran worm. Melalui dinamika penyebaran worm, dapat dipelajari faktor penghambat infeksi worm. Pada penelitian ini dilakukan analisis kestabilan titik setimbang model matematika orde fraksional penyebaran worm berbasis Wi-Fi pada smartphone dengan orde turunan fraksional aE(0,1]. Berdasarkan analisis model, diperoleh dua titik setimbang yaitu titik setimbang bebas worm[( P)]_0 dan titik setimbang endemik [( P)]_1. Titik setimbang bebas worm stabil asimtotis lokal jika basic reproduction number R_0<1, sedangkan titik setimbang endemik stabil asimtotis lokal jika basic reproduction number R_0>1.  Kemudian dilakukan analisis sensitivitas dan simulasi numerik dengan variasi nilai orde fraksional a untuk mengetahui dinamika penyebaran worm berbasis Wi-Fi pada smartphone. Berdasarkan hasil simulasi numerik diperoleh hasil bahwa penambahan node karantina pada jaringan Wi-Fi dapat menurunkan populasi node terinfeksi dan meningkatkan populasi node yang pulih.
Model Matematika Persaingan Dua Spesies dengan Toksisitas dan Pemanenan Selektif Puja Nur Audria; Miswanto; Fatmawati
Limits: Journal of Mathematics and Its Applications Vol. 16 No. 2 (2019): Limits: Journal of Mathematics and Its Applications Volume 16 Nomor 2 Edisi De
Publisher : Pusat Publikasi Ilmiah LPPM Institut Teknologi Sepuluh Nopember

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Abstract

Persaingan merupakan interaksi biologi antar makhluk hidup untuk bersaing mendapatkan sumber energi yang terbatas, misalnya makanan yang dibutuhkan untuk tumbuh dan bertahan hidup. Beberapa spesies mempunyai strategi tersendiri dalam bersaing, diantaranya adalah kemampuan mengeluarkan racun. Pada jurnal ini, dikaji dua model predator-prey yang dipengaruhi oleh adanya toksisitas dan pemanenan selektif. Model pertama mengkaji model persaingan dua spesies dengan adanya toksisitas dan pemanenan selektif, sedangkan model kedua mengkaji model persaingan dua spesies dengan adanya toksisitas dan pemanenan selektif dengan Holling tipe III. Dari model pertama diperoleh 4 titik setimbang yaitu dan Dari model kedua juga diperoleh 4 titik setimbang, yaitu dan . Titik setimbang dan tidak stabil, sedangkan , dan stabil dalam kondisi tertentu. Hasil simulasi numerik menunjukkan bahwa kedua spesies pada model kedua mengalami peningkatan dibandingkan dengan model pertama. Hal tersebut dikarenakan adanya kecenderungan untuk mencari musuh yang lain ketika jumlah musuh mulai berkurang
Model Predator Prey Leslie Gower dengan Fungsional Respon Crowley Martin dan Adanya Prey Terinfeksi Serta Faktor Ketakutan Miswanto; Nunik Suroiyah; Windarto
Limits: Journal of Mathematics and Its Applications Vol. 20 No. 3 (2023): Limits: Journal of Mathematics and Its Applications Volume 20 Nomor 3 Edisi No
Publisher : Pusat Publikasi Ilmiah LPPM Institut Teknologi Sepuluh Nopember

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Abstract

Ekosistem adalah suatu sistem yang terdiri dari organisme hidup dan lingkungannya yang seringkali terjadi interaksi antara makhluk hidup dengan lingkungannya, atau makhluk hidup yang satu dengan mahkluk hidup yang lain. Sebagai contoh interaksi antara predator dengan prey, yaitu singa dengan rusa, ular dengan tikus, burung elang dengan ular dan lain-lain. Pada interaksi antara predator prey seringkali nampak adanya prey yang terinfeksi. Hal ini berdampak adanya penyebaran penyakit oleh prey terinfeksi. Penelitian ini mengkaji model predator prey Leslie Gower fungsi respon Crowley Martin dengan prey terinfeksi serta adanya faktor ketakutan. Metode yang digunakan dalam penelitian ini adalah metode analitik dan simulasi numerik. Metode analitik digunakan untuk mengkaji eksistensi titik setimbang dan analisis kestabilan titik setimbang model, sedangkan metode simulasi numerik digunakan untuk mendukung hasil metode analitik. Berdasarkan hasil analitik diperoleh dua titik setimbang yang cenderung stabil asimtotis, yaitu titik setimbang kepunahan prey terinfeksi dan predator (E1) dan titik setimbang kepunahan predator (E2) Sedangkan titik setimbang kepunahan prey terinfeksi (E3) dan titik setimbang koeksistensi (E4) tidak diperoleh secara analitik. Oleh karena analisis kestabilannya menggunakan bidang fase. Hasil simulasi numerik menunjukkan bahwa keempat titik setimbang, yaitu E1,E2, E3, dan E4 cenderung stabil asimtotis.
Analisis Kestabilan dan Kontrol Optimal pada Model Matematika Penyebaran Penyakit Mumps Miswanto; Farah Biba; Windarto
Limits: Journal of Mathematics and Its Applications Vol. 21 No. 1 (2024): Limits: Journal of Mathematics and Its Applications Volume 21 Nomor 1 Edisi Ma
Publisher : Pusat Publikasi Ilmiah LPPM Institut Teknologi Sepuluh Nopember

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Abstract

Mumps is an acute disease in children and adults, caused by paramyxovirus. In this thesis, a mathematical model analysis of the spread of mumps disease was carried out and the application of optimal control, namely prevention by giving vaccinations and treatment. Based on the analysis of the model without control obtained a non-endemic equilibrium point and an endemic equilibrium point. The non-endemic equilibrium point is local asymptotic stable if the basic reproduction number is less than one while the endemic equilibrium point tends to be local asymptotic stable if the basic reproduction number is more than one . Optimal control on the mathematical model of the spread of mumps disease was carried out using the Pontryagin’s Maximum Principle. The results of numerical simulations show that the provision of control, namely prevention and treatment, is simultaneously considered the most effective and efficient to minimize the number of individual populations infected with mumps disease with minimum cost.
Co-Authors Abdul Munir Ade Irma Arif Fikri D. Mahayana Devina Putri Azara Edi Susilo Eko Hidayat Endah Trikurniasih Er Ayu Nurafifah Farah Biba Farih, Muhammad Fatmawati Fatmawati H. Muhammad I. Pranoto Iswandi Mohammad Imam Utoyo Nova Tri Romadloni Nunik Suroiyah Nur Arjani Puja Nur Audria Rudi Santoso1 Sari, Shara Sandra Sudistina, Sillah Susi Nurkholidah USWATUN HASANAH Windarto WULAN FITRI UTAMI Yahya Aziz