11 articles in this issue
Ari Dwi Hartanto(1*), Al. Sutjijana(2), (1) Universitas Gadjah Mada, Yogyakarta, Indonesia (2) Universitas Gadjah Mada, Yogyakarta, Indonesia (*) Corresponding Author
The phenomena of unknown gain or offset on communication systems and modern storages such as optical data storage and non-volatile memory (flash) becomes a serious problem. This problem can be handled by Pearson distance applied to the detector because it... see more
Diyar Hashim Malo(1), Rogash Younis Masiha(2), Muhammad Amin Sadiq Murad(3), Sadeq Taha Abdulazeez(4*), (1) University of Duhok, Duhok, Iraq (2) Van Yüzüncü Yil Üniversitesi, Van, Turkey (3) University of Duhok, Duhok, Iraq (4) University of Duhok, Duhok, Iraq (*) Corresponding Author
In this article, the Elzaki homotopy perturbation method is applied to solve fractional stiff systems. The Elzaki homotopy perturbation method (EHPM) is a combination of a modified Laplace integral transform called the Elzaki transform and the homotopy pe... see more
Fauziyah(1), Evita Purnaningrum(2*), (1) Universitas PGRI Adi Buana Surabaya, Surabaya, Indonesia (2) Universitas PGRI Adi Buana Surabaya, Surabaya, Indonesia (*) Corresponding Author
Long-term stock investment development is carried out by means of portfolio optimization. Selection of stocks for portfolios is not only based on high-value stock prices but also takes into account their fluctuations. Estimation of future stock price fluc... see more
Nurwan Nurwan(1), Widya Eka Pranata(2*), Muhamad Rezky Friesta Payu(3), Nisky Imansyah Yahya(4), (1) Universitas Negeri Gorontalo, Gorontalo, Indonesia (2) Universitas Negeri Gorontalo, Gorontalo, Indonesia (3) Universitas Negeri Gorontalo, Gorontalo, Indonesia (4) Universitas Negeri Gorontalo, Gorontalo, Indonesia (*) Corresponding Author
This research deals with applying the Dijkstra algorithm and Welch-Powell algorithm to on-campus bus transportation problems. This research aims to determine the optimal solution of campus bus transportation routes in the shortest routes and schedules. In... see more
M. Ivan Ariful Fathoni(1*), Anisa Fitri(2), Hanifahtul Husnah(3), (1) Universitas Nahdlatul Ulama Sunan Giri, Bojonegoro, Indonesia (2) Universitas Nahdlatul Ulama Sunan Giri, Bojonegoro, Indonesia (3) Universitas Nahdlatul Ulama Sunan Giri, Bojonegoro, Indonesia (*) Corresponding Author
This study discusses the interaction of students with a mathematical modeling point of view. This interaction involves students who understand and do not understand mathematics subject matter. The interaction process between groups is modeled in a two-dim... see more
Siti Hadijah Hasanah(1*), (1) Universitas Terbuka, Indonesia (*) Corresponding Author
Multivariate Adaptive Regression Splines (MARS) used to model the active student’s status in the Department of Statistics at Universitas Terbuka and determine the factors that influence the response variable. This study consists of 9 variables, namely gen... see more
Nihaya Alivia Coraima Dewi(1*), Fitroh Resmi(2), Pukky Tetralian Bantining Ngastiti(3), (1) Universitas Billfath, Lamongan, Indonesia (2) Universitas Billfath, Lamongan, Indonesia (3) Universitas Billfath, Lamongan, Indonesia (*) Corresponding Author
This study aims to determine the optimization of balanced dietary composition for pregnant women. Determination of the optimization of balanced food is carried out by forming a linear model along with boundary conditions and objective functions, as well a... see more
Muhammad Fajar(1*), Wahyudi Wahyudi(2), (1) Badan Pusat Statistik, Indonesia (2) Badan Pusat Statistik, Indonesia (*) Corresponding Author
Aim of this study is to make parametric modeling of the COVID-19 epidemic growth curve so that the maximum value and time at that point can be obtained from the cumulative cases of COVID-19. The data used in this study is the cumulative number of positive... see more
Vivin Umrotul M. Maksum(1), Dian C. Rini Novitasari(2*), Abdulloh Hamid(3), (1) UIN Sunan Ampel Surabaya, Surabaya, Indonesia (2) UIN Sunan Ampel Surabaya, Surabaya, Indonesia (3) UIN Sunan Ampel Surabaya, Surabaya, Indonesia (*) Corresponding Author
COVID-19 is a disease or virus that has recently spread worldwide. The disease has also taken many casualties because the virus is notoriously deadly. An examination can be carried out using a chest X-Ray because it costs cheaper compared to swab and PCR ... see more
M. Fariz Fadillah Mardianto(1*), Reynaldy Aries Ariyanto(2), Raka Andriawan(3), Devayanti Anugerahing Husada(4), (1) Universitas Airlangga, Surabaya, Indonesia (2) Universitas Airlangga, Surabaya, Indonesia (3) Universitas Airlangga, Surabaya, Indonesia (4) Universitas Airlangga, Surabaya, Indonesia (*) Corresponding Author
Plastic waste is a problem that almost exists in all countries. This problem arises because of the lack of facilities that can handle the plastic waste. Suroboyo Bus is an innovation for this problem because Suroboyo Bus uses plastic bottles as payment. T... see more
Yuyun Monita(1*), Putroue Keumala Intan(2), (1) UIN Sunan Ampel Surabaya, Surabaya, Indonesia (2) UIN Sunan Ampel Surabaya, Surabaya, Indonesia (*) Corresponding Author
The condition in which an individual is affected by TB and HIV/AIDS in his body is called a TB-HIV/AIDS coinfection. This research aims to minimize the populations of TB-HIV/AIDS coinfection with a minimum expenditure on medical expenses, that means minim... see more