bluuebunny/crossref_metadata_2025_split huggingface dataset:
Hubungan antara Kepribadian dan Motivasi terhadap Intensi Santri Putri Pondok Pesantren Bahrul ‘Ulum Tambakberas Jombang
Authors: Umar Asrori 
Published: July 2021

Intensi kewirausahaan dapat diartikan sebagai proses pencarian informasi yang dapat digunakan untuk mencapai tujuan pembentukan suatu usaha. Intensi kewirausahaan dipengaruhi oleh berbagai factor diantaranya kepribadian, factor lingkungan dan motivasi. Dalam penelitian ini ingin diketahui seberapa besar pengaruh dan kontribusi kepribadian, factor lingkungan dan motivasi terhadap intensi kwirausahaan mahasiswa.Dalam penelitian ini digunakan analisis regresi komponen utama karena dugaan awal analisis dengan menggunakan regresi ganda metode kuadrat terkecil ditemukan kasus multikolinieritas walaupun pada uji serentak koefisien regresi gandanya signifikan dengan persamaan regresinya : Dari hasil analisis menunjukkan bahwa kepribadian dan motivasi memberikan pengaruh hubungan dan kontribusi yang signifikan terhadap intensi kewirausahaan mahasiswa, kecuali pada faktor lingkungan yang tidak memberikan pengaruh yang signifikan. Tingkat sensitifitas terbesar intensi kewirausahaan mahasiswa terdapat pada kepribadian, yaitu sebesar 1,042 yang dapat diinterpretasikan bahwa bila kepribadian meningkat 1% akan meningkatkan intensi kewirausahaan santri putri (Y) sebesar1,042 %.Kata kunci : Intensi Kewirausahaan, Regresi Komponen Utama
Hubungan Penggunaan Smartphone Dengan Intensitas Interaksi Sosial Pada Mahasiswa Keperawatan
Authors: Wijayanto Indra , Suib Suib 
Published: July 2021

Setiap aktivitas manusia di era digital akan digerakkan melalui serangkaian teknologi digital. Interaksi antar manusia digerakkan dengan teknologi serba digital: computer, internet, telepon, smartphone. Penggunaan smartphone pada waktu yang lama dapat mempengaruhi intensitas interaksi sosial, salah satunya dapat dapat mempengaruhi intensitas interaksi sosial pada mahasiswa. Intensitas interaksi sosial adalah seberapa sering suatu hubungan antara dua atau lebih individu, dimana perilaku individu yang satu mempengaruhi, mengubah, atau memperbaiki perilaku individu yang lain. Interaksi sosial dapat dipandang sebagai dasar proses-proses sosial yang ada, menunjuk pada hubungan- hubungan sosial yang dinamis. Penelitian ini bertujuan untuk mengetahui hubungan penggunaan smartphone dengan intensitas interaksi sosial pada mahasiswa semester V Program Studi Keperawatan di STIKes Surya Global Yogyakarta. Penelitian ini merupakan penelitian deskriptif korelasional dengan pendekatan cross sectional. Sampel sebanyak 60 mahasiswa yang dipilih menggunakan teknik systematic random sampling. Analisa data menggunakan Kendalls Tau. Hasil analisa data menunjukkan koefisien korelasi sebesar 0.359 dan angka signifikan 0,003. Hal ini berarti terdapat hubungan yang signifikan antara penggunaan smartphone dengan intensitas interaksi sosial pada mahasiswa semester V program studi keperawatan di STIKes Surya Global Yogyakarta.
PENGEMBANGAN PEMBELAJARAN BERBASIS WEB MATA KULIAH SISTEM BELAJAR JARAK JAUH (SBJJ) UNTUK PROGRAM STUDI TEKNOLOGI PENDIDIKAN FKIP UIKA BOGOR
Authors: Wiranata Afif Ahmad 
Published: July 2021

Penelitian ini bertujuan mengembangkan pembelajaran berbasis web matakuliah Sistem Belajar Jarak Jauh (SBJJ) untuk Program Studi Teknologi Pendidikan. Penelitian ini dilaksanakan di Program Studi Teknologi Pendidikan dengan sasaran mahasiswa program sarjana. Metode penelitian mengacu pada model pengembangan Dick & Carey. Nama produk hasil pengembangan program ­web-based learning mata kuliah Sistem Belajar Jarak Jauh yaitu dengan URL https://elearning.uika-bogor.ac.id/course/view.php?id=1467. Program ini dikembangkan menggunakan platform LMS Moodle. Evaluasi terhadap produk dilakukan sesuai acuan model pengembangan Dick & Carey, proses evaluasi bertahap dilakukan pada para ahli yaitu kepada ahli materi, ahli media, dan ahli instruksional. Kemudian dilanjutkan kepada sasaran dengan uji satu-ke-satu, kelompok kecil, dan kelompok besar. Evaluasi dilakukan hingga tahap evaluasi formatif, hasil evaluasi formatif menyatakan bahwa web-based learning mata kuliah SBJJ Program Studi Teknologi Pendidikan UIKA rata-rata mendapatkan nilai 82,5 masuk kedalam kategori baik diperkuat dengan hasil ujian yang rata-rata memperoleh nilai 83.0 yang dikategorikan baik.
Pearls analysis to assess the health level of Hati Amboina service office (KP) Saumlaki Cooperative Credit Union (CU)
Authors: Esomar Maria J.F , Titioka Baretha Meisar 
Published: July 2021

Performance measurement of Credit Union is important to do in order to improve and at the same time becomes a way of evaluating achievement in specific periods. It will show level of success of operational activities conducted and create foundation of developing strategy in the coming days. To get a clear view of a financial report, there has to be a financial performance measurement of Credit Union of Hati Amboina KP Saumlaki through financial rasio analysis named PEARLS which is identified as P (Protection), E (Effective Financial Structure), A (Asset Quality), R (Rate of Return & Cost), L (Liquidity), S (Signs of Growth). This research aims to know how healthy the finance of Credit Union of Hati Amboina KP Saumlaki from year of 2017 to 2019 using PEARLS Rasios. The research shows that Credit Union of Hati Amboina KP Saumlaki is good enough in financial health which described in many variables suit PEARLS Rasios. Overall PEARLS Rasios explains that financial condition of Credit Union Hati Amboina KP Saumlaki is healthy enough. To some rasios that fulfill no standard ideally, the Credit Union needs to find proper strategy to raise its financial performance. Keywords: Credit Unions, PEARLS,performing operations
ANALISIS TINGKAT KESESUAIAN WISATA BAHARI PADA EKOSISTEM TERUMBU KARANG DI PULAU LAREA- REA KABUPATEN SINJAI
Authors: Wahyudi Isra , Asbar Asbar , Sultan Danial 
Published: July 2021

Coral reefs are one of the marine tourism potentials that need to be managed in a sustainable manner by looking at the suitability of tourism and the carrying capacity of the environment. Data on the potential for coral reefs will support government programs related to conservation and rehabilitation of coastal and marine ecosystems as a focus area for maritime research. This study aims to determine the potential and percentage of coral reef cover, know the tourism suitability index and environmental carrying capacity, know the direction of coral reef ecosystem management. The research method is using UPT (Underwater Photo Transect), as well as measurement of environmental parameters on Larea-rea Island. Data analysis using CPCe 4.1 software, and Arcgis 10.8 (Kismanto et.al, 2018). Than, an analysis of the suitability of diving tourism and an analysis of the carrying capacity of the area is carried out (Yulianda, 2018).Coral reefs are one of the marine tourism potentials that need to be managed in a sustainable manner by looking at the suitability of tourism and the carrying capacity of the environment. Data on the potential for coral reefs will support government programs related to conservation and rehabilitation of coastal and marine ecosystems as a focus area for maritime research. This study aims to determine the potential and percentage of coral reef cover, know the tourism suitability index and environmental carrying capacity, know the direction of coral reef ecosystem management. The research method is using UPT (Underwater Photo Transect), as well as measurement of environmental parameters on Larea-rea Island. Data analysis using CPCe 4.1 software, and Arcgis 10.8 (Kismanto et.al, 2018). Than, an analysis of the suitability of diving tourism and an analysis of the carrying capacity of the area is carried out (Yulianda, 2018). The results of this study indicate that the percentage of potential coral reef cover at all stations is 10-36%, indicating that the coral condition is not good (according to the conditions). Damage to coral reef ecosystems due to environmentally unfriendly fishing activities (Wardani, 2018). The number of lifeform types ranged from 8-12, while the number of fish species obtained was 37-44 species. The suitability class category based on the results of the analysis at the three stations obtained the appropriate category (S2), with a percentage of the IKW value of 50-67% (Yulianda, 2018). Then, area carrying capacity (DDK) in the diving tourism category is an average of 528 people / day from the three stations. Management and development of marine tourism can be done by determining the zone of utilization and rehabilitation of coral reef ecosystems, as well as limiting visitors for certain periods to reduce the potential impact of environmental degradation.
Unsteady MHD Free Convection and Mass Transfer Flow Through a Vertical Oscillatory Porous Plate in a Rotating Porous Medium with Hall, Ion-slip Currents and Heat Source
Authors: Hossain Md Delowar , Samad Md Abdus , Alam Md Mahmud 
Published: July 2021

The analytical solution is made on the unsteady flow of an electrically conducting viscous incompressible fluid bounded by an infinite vertical porous plate. The plate executes harmonic oscillation at a frequency n in its own plane. The governing equations of the problem contain coupled partial differential equations. The dimensionless equations are solved analytically using perturbation technique. The effect of various parameters of the problem on the velocity, temperature and concentration field within the boundary layer are discussed and shown graphically.
Dhaka Univ. J. Sci. 64(2): 91-98, 2016 (July)
Study on the Swelling Behavior of Gamma Radiation Induced Acrylamide/Carboxymethyl Cellulose Blend Hydrogel in Urea Solution.
Authors: Sultana Salma , Habib Kumkum , Islam M Rabiul , Dafader Nirmal Chandra , Haque M Emdadul , Rahman AFM Mustafizur 
Published: July 2021

Swelling behaviors of crosslinked acrylamide (AAm)/carboxymethyl cellulose sodium salt (CMC) blend hydrogels synthesized using gammaradiation from Co-60 source in aqueous solutions of urea were investigated. The parameters like effect of radiation dose and concentration of CMC in AAm/CMC blend were studied on swelling properties. Swelling experiments were performed in various concentrations of urea solution and distilled water at room temperature. The swelling properties of hydrogels increased with increased concentration of CMC but it decreased with increased radiation dose. Hydrogels showed enormous swelling in aqueous solution of urea. The swelling properties of AAm/CMC hydrogel were lower in distilled water than that of in urea solution. The water absorption of AAm/CMC blend hydrogels increased from ~4,800 to ~9,000% for the concentration range of CMC from 0 to 7% for 48 hours standing in distilled water at 25 kGy radiation dose. It was also found that water absorption by AAm hydrogel with 7% CMC decreased from ~13,800 to ~8,500% for the radiation range from 15 to 35 kGy for 48 hours standing time in water. The equilibrium water content (EWC) of AAm/CMC blend hydrogel depended on radiation dose. EWC decreased from ~0.9935 to ~0.9896 with the variation of radiation dose from 15 to 35 kGy in 0.01M urea solution at 48 hours.
Dhaka Univ. J. Sci. 64(2): 105-108, 2016 (July)
Study on De Rham Cohomology Algebra of Manifolds
Authors: Tahora Saraban , Ahmed Khondokar M 
Published: July 2021

In the present paper some aspects of exterior derivative, graded algebra, cohomology algebra, de Rham cohomology algebra, singular homology, cohomology class are studied. Graded subspace, smooth map, a singular P- - simplex in a manifold M, oriented n- manifold M, the space of P- cycles and P- boundaries, Pth singular homology and homology class are treated in our paper. A theorem 3.03 is established which is related to orientable manifold.
Dhaka Univ. J. Sci. 64(2): 109-113, 2016 (July)
A Computer Technique for Solving Linear Fractional Programming Problems by Using Dinkelbach’s Algorithm
Authors: Chakroborty Sajal , Hasan Md Babul 
Published: July 2021

In this paper, we introduce a computer oriented technique for solving linear fractional programming (LFP) problems by converting it into a single linear programming (LP) problem. We have used the idea of Dinkelbach’s algorithm. We use a mathematical programming language (AMPL) to develop computer code. A number of numerical examples are used to demonstrate the technique.
Dhaka Univ. J. Sci. 64(2): 121-125, 2016 (July)
In Vitro Evaluation of Different Approaches and Dissolution Enhancement Technique of Poorly Water-Soluble Drug Ibuprofen
Authors: Hossain ASM Monjur Al , Dutta Konika Rani , Hossain Md Lokman 
Published: July 2021

Ibuprofen Solid Dispersion (SD) was prepared by simple Physical Mixing (PM) and Kneading Method (KM). In these two cases, four polymers named poloxamer 407, sodium carboxy methyl cellulose, croscarmellose sodium and pregelatinized starch were used to enhance the dissolution profile of Ibuprofen. In both methods, the ratio of drug and carrier were 1:1, 1:2, 1:3 of which the ratio of 1:3 in KM gave comparatively better result than PM method. In vitro dissolution study was performed in distilled water in 50 rpm and at 37 ± 0.5°C. In case of pure Ibuprofen, dissolution rate was only 26% after 60 minutes (mins) of dissolution. While in KM, Ibuprofen pregelatinized starch formulation at 1:3 ratio showed better dissolution rate. After 60 mins, dissolution rate of Ibuprofen was 72%. The SD formulations of Ibuprofen-pregelatinized starch and Ibuprofen-Na-CMC of physical mixing and kneading techniques (1:3 ratio) were characterized by Fourier Transform Infrared Spectroscopy (FTIR).
Dhaka Univ. J. Sci. 64(2): 169-175, 2016 (July)
Effect of Birth Interval on Neonatal and Post Neonatal Mortality in Bangladesh
Authors: Taisir Radia , Zahura Most Fatima Tuz , Bari Wasimul 
Published: July 2021

This study investigates the relationship between previous birth interval and infant mortality using the data extracted from the Bangladesh Demographic and Health Survey (BDHS), 2011. For the purpose of regression analysis, the Cox proportional hazard model has been used. Results demonstrate significant effects of previous birth interval on neonatal mortality, but not on post neonatal mortality. If the previous birth interval is less than two years or greater than three years, the index child experiences high risk of neonatal mortality.
Dhaka Univ. J. Sci. 65(1): 35-39, 2017 (January)
Comparative Study for Photodegradation of Remazol Red R by Different TiO2 Samples
Authors: Rashed Nurnabi , Mazumder AZM Mainul Islam , Hossain Md Mufazzal 
Published: July 2021

Potassium dichromate modified TiO2 photocatalyst (MD-TiO2) was prepared and its photocatalytic activity was compared with that of ordinary commercial TiO2 (C-TiO2) and special Degussa P25 TiO2 (D-TiO2). An organic dye, remozol red R(RRR) was used as a substrate for photodegradation from aqueous solution into environmentally safe products such as water, carbon dioxide and mineral ions. The photodegradation of RRR was carried out by varying the concentration of different types of TiO2 suspension, initial concentrations of dyes between 0.5× 10-4 M and 2.5 ×10-4 M, pH between 2.0 and 6.0 and light sources which are UV, artificial visible and sunlight. With increasing the catalyst concentration, percent degradation was found to increase up to a concentration of 1.2 g/100 mL of C-TiO2, 0.12 g/ 100 mL of D-TiO2 and 0.10 g/100 mL of modified MD-TiO2 for a definite concentration of RRR. However, RRR shows adsorption on TiO2 samples except C-TiO2. Again, the photodegradation efficiency is inversely affected by the dye concentration. Thus, the removal efficiency was found to be influenced by all of the above parameters. The maximum removal efficiency is found at pH 3.0 under sunlight in the presence of modified MD-TiO2,which suggests that MD-TiO2 can be used as an effective material for the removal of RRR instead of C-TiO2 and D-TiO2.
Dhaka Univ. J. Sci. 65(1): 49-54, 2017 (January)
A Data Acquisition System for Solar PV Module with Variable Load
Authors: Rahman Md Habibur , Shams Nasif , Mazumder Gour Chand , Huque Saiful 
Published: July 2021

This paper describes the design, development and performance of a locally developed data acquisition system for solar PV module with variable load. The system can automatically change the operating point of a PV module and acquire the output voltage and load current into computer and then analyze. To change the operating point, a variable load has been developed by IRF250 MOSFETs. The current drawn by the load from the PV module is controlled by a staircase voltage, which is developed by a counter and a DAC. The count value of the counter and hence the voltage level of the staircase is changed by an Arduino-based controlling unit. To get the short-circuit current, the PV module is connected in series with a high ampere power supply and the voltage across the PV module is conditioned by a difference amplifier and fed to an ADC channel of the controlling unit. The output current of the PV module has been sensed by a Hall sensor, ACS712, and read by another ADC channel. To make the whole system automatic, a program has been developed using Arduino IDE and loaded in the Arduino board. With the help of this program, the system can measure the current and voltage of the PV module and send to a PC. This acquired data is processed by software and the performance of the PV module is obtained. The system has been developed in laboratory and its performance has been studied. Although, there are some fluctuations in the acquired data but with filtration satisfactory performance is obtained. This instrument can be used for PV module testing purpose.
Dhaka Univ. J. Sci. 65(1): 67-72, 2017 (January)
Human Trafficking and Displacement in South Asia: An Econometric Analysis
Authors: Rahman Tanjina , Rayhan Md Israt , Sultana Nayeem 
Published: July 2021

Human trafficking has received increased media and national attention. Despite concerted efforts to combat human trafficking, the trade in persons persists and in fact continues to grow. This paper describes the relationship and distinction between trafficking and ethnic fragmentation, conflict, internally displaced person by different measures of control. To explain the relationship between these factors, this study uses a Probit regression model. It appears that ethnic conflict leads the internal displacement of individuals from networks of family and community, and their access to economic and social safety nets.
Dhaka Univ. J. Sci. 65(1): 73-76, 2017 (January)
Natural Convection Flow of MHD Micropolar Fluid Along a Vertical Wavy Surface
Authors: Sultana S , Roy Nepal C 
Published: July 2021

We study the boundary layer characteristics of natural convection flow of an electrically conducting micropolar fluid along a vertical wavy surface. The dimensionless governing equations have been solved numerically. Results are presented in terms of the local skin-friction coefficient, the local Nusselt number and the local couple stress with the variation of amplitude-wavelength ratio, magnetic parameter, vortex viscosity parameter and spin-gradient viscosity parameter. Due to increase of the amplitude wave-length ratio, the skin-friction and the couple stress are found to decrease whereas the Nusselt number increases. The skin friction and the couple stress increase but the Nusselt number decreases for increasing values of vortex viscosity parameter. In addition, when the spin-gradient viscosity is increased, the maximum values of the Nusselt number and the couple stress significantly increase but the skin-friction decreases. The magnetic parameter considerably reduces the skin-friction, Nusselt number and couple stress.
Dhaka Univ. J. Sci. 65(2): 91-96, 2017 (July)
Synthesis and Characterization of Cu(II), Zn(II), Cd(II) and Hg(II) Complexes of Rabeprazole
Authors: Begum Salma , Yeasmin Humaira , Debnath Tapas , Shaikh AA , Bakshi Pradip K 
Published: July 2021

Rabeprazole (RPZH) (available as rabeprazole sodium, RPZNa) is a proton pump inhibitor (PPI), widely used for the treatment of acid-related diseases in the stomach and duodenum. It is a weak base with pKa= 4.9 and show a strong ability to form complexes with transition and nontransition metal ions. Its complexes with Cu(II), Zn(II), Cd(II) and Hg(II) have been synthesized and characterized by solubility, melting point, metal content estimation, IR and UV-Visible spectral analysis, magnetic measurement, thermogravimetric analysis, differential scanning calorimetry and X-ray powder diffraction studies. On the basis of metal contents, the complexes have been formulated as [Cu(RPZ)(H2O)Cl], [Zn(RPZ)2], [Cd(RPZ)2].2H2O and [Hg(RPZ)2].H2O. Rabeprazole sodium (RPZNa) loses Na+ ion in solution yielding a monoanionic RPZ that behaves as a bidentate ligand and coordinates through C-N- and S=O groups with the divalent metal ion. Tetrahedral geometry of all complexes is proposed. Zn(II), Cd(II) and Hg(II) complexes have 1:2 metal to ligand stoichiometry while Cu(II) complex possesses ligand to metal ratio of 1:1. Cu(II) and Zn(II) complexes have also been screened for their antibacterial and antifungal activities against several bacteria and fungi.
Dhaka Univ. J. Sci. 65(2): 157-162, 2017 (July)
Approximate Solution of Nonlinear Integral Equations of the Second Kind by Using Homotopy Perturbation Method
Authors: Hasan MM , Matin MA 
Published: July 2021

In this paper, we apply Homotopy perturbation method (HPM) for obtaining approximate solution of nonlinear Fredholm integral equation of the second kind. Finally, some numerical examples are provided, and the obtained numerical approximations are compared with the corresponding exact solution.
Dhaka Univ. J. Sci. 65(2): 151-155, 2017 (July)
Investigação Magnetotelúrica em um Perfil entre Belo Horizonte (MG) e Vitória (ES), Brasil / Magnetotelluric Investigation in a Profile between Belo Horizonte (MG) and Vitória (ES), Brazil
Authors: Dias Gleide Alencar do Nascimento 
Published: July 2021

O método magnetotelúrico (MT) é um método geofísico utilizado para a compreensão das características geológicas superficiais e profundas da Terra, dentre outras aplicações. O MT foi utilizado na faixa de freqüência de 0.01 e 100 Hz, com 15 estações ao longo de um perfil de 172 km entre os Estados de Minas Gerais e Espírito Santo. As medidas ao longo do perfil são localizadas sobre terrenos Pré-Cambrianos relacionados a Faixa Ribeira. Os dados foram interpretados através de modelos de inversão unidimensionais (1D) e bidimensionais (2D), sendo o modelo 1D utilizado somente para a correção do static shift. O modelo geoelétrico 2D resultante da inversão 2D de subsuperfície apresenta uma boa correlação com a geologia superficial. O condutor crustal observado em várias partes do mundo, inclusive no sudeste do Brasil, também é verificado no perfil em estudo. Entretanto, diferentemente dos condutores crustais observados, apresenta uma variação na profundidade de seu topo que vai aproximadamente de 3 até10 km. Sua parte mais rasa foi observada no extremo oeste do perfil, o qual pode estar associada a uma descontinuidade denominada de Abre Campo.