38 research outputs found

    Pengaruh Literasi Keuangan dan Perilaku terhadap Minat Menabung (Studi kasus pada mahasiswa Fakultas Ekonomi dan Bisnis Universitas Bhayangkara Jakarta)

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    Penelitian dalam skripsi ini dilatar belakangi oleh fenomena yang terjadi pada mahasiswa Fakultas Ekonomi dan Bisnis Universitas Bhayangkara Jakarta mengenai literasi keuangan dan perilaku mereka terhadap minat menabung (studi kasus pada mahasiswa Fakultas Ekonomi dan Bisnis Universitas Bhayangkara Jakarta). Ditemukannya fakta menarik dimana pihak fakultas memberikan kewajiban kepada mahasiswa khususnya pada jurusan ekonomi dan bisnis untuk mencoba menabung sebagai investasi jangka panjang, akan tetapi beberapa mahasiswa kurang berminat untuk menabungkan uangnya pada bank sehingga mereka tidak meneruskan tabungannya tersebut padahal literasi keuangan dan perilaku mereka cukup baik bila dilihat dari pernyataan yang mereka sampaikan kepada peneliti. Sehingga perlu diadakannya penelitian lebih lanjut mengenai hal tersebut. Rumusan masalah dalam penelitian ini adalah: (1) apakah terdapat pengaruh literasi keuangan terhadap minat menabung pada mahasiswa FEB Universitas Bhayangkara Jakarta?. (2) apakah terdapat pengaruh perilaku terhadap minat menabung pada mahasiswa FEB Universitas Bhayangkara Jakarta?. (3) apakah literasi keuangan dan perilaku terdapat pengaruh terhadap minat menabung pada mahasiswa FEB Universitas Bhayangkara Jakarta?. Berdasarkan hasil penelitian ini dapat disimpulkan bahwa hasil uji analisis memberikan hasil bahwa: (1) literasi keuangan (X1) secara parsial berpengaruh positif dan signifikan terhadap minat menabung pada mahasiswa FEB Universitas Bhayangkara Jakarta, (2) perilaku (X2) secara parsial berpengaruh positif dan signifikan terhadap minat menabung pada mahasiswa FEB Universitas Bhayangkara Jakarta, (3) literasi keuangan (X1) dan perilaku (X2) secara simultan (bersama-sama) berpengaruh signifikan terhadap minat menabung pada mahasiswa FEB Universitas Bhayangkara Jakarta

    Analysis of Mechanical Properties and Permeability of Sand Moulding by Using Eggshell in Sand Casting

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    This study aimed to analyse the usage of Eggshell as mixture material of bentonite in metal casting process which used dried sand moulding. Eggshell variations in this study were 4%, 7%, 10% eggshell, and additional 3% of bentonite on each sample. This study used pre-experimental method and included to One-Shot Case Study model. The highest strength was found on the sample 3 ES 10%. Tensile strength of dried sand moulding reach up to 0.09 kg/cm2, the compressive strength of dried sand moulding reached up to 3.11 kg/cm2, and the shear strength of dried sand moulding reached up to 1.13 kg/cm2. Based on the test result indicated that permeability of sand moulding by heat treatment at 110ºC for 60 minutes at sample of 3 ES 10% was at 178.3 ml / min

    Mechanical Properties and Permeability of Sand Casting Moulds with Eggshells Binder

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    This research aimed to analyse whether or not eggshell could be a potential addition to sand mould composition as a binding material together with bentonite. Different amounts of eggshell material, i.e. 4%, 7%, 10% and 3%, were added to each sample. This study was a type of pre-experimental design called the one-shot case study. Among all sand moulds under study, sample 3 10% ES in dry conditions had the highest tensile, compressive and shear strengths of 0.09 Kg/cm2, 3.11 Kg/cm2 and 1.13 Kg/cm2, respectively. The results of the permeability test with heat treatment at 110˚C for 60 minutes showed that sample 3 10% ES had a permeability value of 178.3 ml/min

    Kinetics of Anaerobic Digestion of Dairy Fat Waste with Saponification Pre-Treatment

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    Anaerobic digestion has been an attractive field of research in the era of energy crisis. Biogas, which is the product of anaerobic digestion, provides alternative energy, while at the same time it also prevents pollution due to organic waste accumulation. Among various organic wastes, dairy fat waste is a potential substrate for anaerobic digestion. Fat waste has high theoretical biogas potential because of its high lipid content. However, anaerobic digestion of organic waste with high lipid content is quite challenging. The main obstacle in anaerobic digestion of fat waste is its tendency to form insoluble floating layer on top of the liquid phase. This phenomenon hinders the access of hydrolytic bacteria to the substrate. Saponification is one of the methods to increase the solubility of the floating layer and hence to improve the availability of substrate for the bacteria. Saponification changes the lipid content into soap which has both polar and non-polar functional groups and the polar side will increase the solubility of the substrate in water. This study evaluated the effect of different dosage of base added as the reactant during saponification pre-treatment on the productivity of anaerobic digestion of dairy fat waste. The kinetics of the anaerobic digestion process was analyzed by mean of mathematical model. The variations of the alkaline dosages studied for saponification pre-treatment were 0.04 mol base/g sCOD; 0.02 mol base/g sCOD; and no pre-treatment for control reactor. This study proved that saponification increased the solubility of dairy fat waste. This result was confirmed by the hydrolysis constant value (kH) of 0.00782/day for reactor with saponification, which was twenty times of magnitude higher than the kH value of 0.00032/day in the reactor without saponification. However, the exposure to high pH during the saponification pre-treatment might somewhat inhibit indigenous acidogenic bacteria in the waste which results in lower methane yield in the reactors with saponification to be compared to the control reactor. A B S T R A KPeruraian anaerobik merupakan salah satu bidang riset yang sangat menarik perhatian dalam era krisis energi. Biogas tidak hanya menyediakan energi alternatif, tetapi juga dapat mencegah pencemaran akibat limbah organik. Limbah lemak susu adalah substrat yang potensial untuk proses peruraian anaerobik karena memiliki potensi biogas teoritis yang tinggi akibat kandungan lemaknya yang tinggi. Namun, peruraian anaerobik dari limbah organik dengan kandungan lemak yang tinggi memiliki tantangan tersendiri. Hambatan utama dalam peruraian anaerobik dari limbah lemak susu adalah kecenderungan untuk membentuk lapisan padatan yang tidak larut dan mengapung di bagian atas fase cair. Fenomena ini menghambat akses bakteri hidrolisis terhadap substrat. Saponifikasi adalah salah satu cara untuk meningkatkan kelarutan lapisan padatan tersebut, sehingga meningkatkan ketersediaan substrat untuk bakteri. Saponifikasi akan mengubah kandungan lemak menjadi sabun yang memiliki gugus fungsi polar maupun non-polar. Gugus fungsi yang bersifat polar akan meningkatkan kelarutan substrat dalam air. Studi ini mengevaluasi pengaruh dari berbagai dosis larutan basa yang ditambahkan sebagai reaktan selama perlakuan awal saponifikasi terhadap peruraian anaerobik limbah lemak susu. Kinetika proses peruraian anaerobik dianalisis dengan menggunakan model matematika. Variasi dosis yang diamati pengaruhnya untuk perlakuan awal saponifikasi adalah 0,04 mol basa/g sCOD; 0,02 mol basa/g sCOD; dan nol (tanpa perlakuan awal saponifikasi). Dari penelitian ini, terbukti bahwa saponifikasi berhasil meningkatkan kelarutan limbah lemak susu dan juga ditunjukkan oleh nilai konstanta hidrolisis (kH) 0,00782/hari lebih tinggi dua puluh kali lipat dibandingkan dengan nilai kH 0,00032/hari pada reaktor tanpa saponifikasi. Akan tetapi, penelitian ini juga mengindikasikan bahwa bakteri asidogenik bawaan substrat terhambat kinerjanya oleh paparan pH yang tinggi selama perlakuan awal saponifikasi berlangsung sehingga hasil gas metan yang diperoleh lebih rendah daripada reaktor kontrol

    Estimation of Genetic Superiority and Reproductive Performance of Dairy Cows at different rearing locations

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    The objective of this study was to estimate the genetic superiority using the estimated breeding value (EBV) and most probable producing ability (MPPA) and to elucidate the reproductive performance of dairy cows at two different rearing locations. This study used data from dairy cows in two areas, namely at the dairy breeding center (Group I) for 100 heads and the dairy farmers (group II) for 40 head cows. The survey method was used in this study. The parameters observed were total milk production, days open (DO), service per conception (S/C), and calving interval (CI). The data were analyzed descriptively and using a t-test. The results showed that productivity in groups I and II for the total milk production was 5,017.52±1,096.84 and 3,922.52±1,296.55 kg/head/lactation, respectively; DO was 141.45±64.30 and 281.68±92.42 days, respectively; S/C was 1.47±0.61 and 1.70±0.69 times, respectively; and CI was 421.59±63.47 and 565.23±95.33 days, respectively. In conclusion, differences in management systems in breeding center and dairy farmers group give different productivity. The results can be used for management improvement and increasing productivity strategies. Livestock selection in dairy breeding center and dairy farmers can be made by estimating the genetic superiority using the estimated breeding value and most probable producing ability

    Effect of Visionary Leadership on Team Innovation: Understanding Mediating Roles of Team Cohesion, Team Knowledge Collaboration and Team Bound-ary Management

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    This study is important as it seeks to fill the existing gap in the existing literature on the interactions between visionary leadership and team innovation in the context of the palm oil industry which is confronted with the challenge of achieving profitability while operating in an environmentally sus-tainable manner. The study sets out to investigate the impact of visionary leadership on the innova-tion exhibited by the teams while focusing on team cohesion, team knowledge collaboration and team boundary management as the mediating variables. A quantitative explanatory design was adopted and data was collected from 280 respondents in nine palm oil factories in Rokan Hulu Re-gency, Riau Province, Indonesia. Databases include Structural Equation Modeling (SEM) Managed to achieve data processing and analysis of the relationships among the variables. The results show that anyway, visionary leadership is a strong contributor to team innovation, both directly and indi-rectly, through its principles such as teamwork, boundary management, and even collaboration. From these findings, it is critical to highlight that visionary leadership is key in enhancing the team work environment and the team collaboration potention which in the long run triggers innovation. Such management practices should focus on how to develop leadership that drives sharing of knowledge and boundary management as this improves the innovation capabilities of the firm

    Effect of Age at First Calving on Milk Production and Reproductive Performance of Indonesian Holstein Dairy Cattle

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    The purpose of this study was to determine the milk production and reproductive performance of dairy cattle in groups of different ages at first calving and to elucidate the effect of age at first calving on milk production and calving interval of Indonesian Holstein dairy cattle. The observation method use in this study. Records of 80 dairy cows which were born in Indonesia and had the age at first calving range of 23-32 months were used as the materials. Cows were divided into two groups based on age at first calving (AFC). Group I was cows with age at first calving of 23-27 months and group II with age at first calving of 28-32 months. The parameters observed were the total milk yield, calving interval, post-partum mating, interval from calving to conception, and service per conception. To compare data between two groups, the t-tests and descriptive analysis were used. The results showed that the total milk yield, calving interval, postpartum mating, interval from calving to conception, and service per conception in the group I did not have a significant difference from the group II. The linear regression analysis showed that the age at first calving had a weak negative effect on the total milk yield, and the age at first calving had a weak positive effect on the calving interval. In conclusion, the difference in the age at first calving did not provide a different performance on milk production and reproduction of dairy cattl

    Effect of Visionary Leadership on Team Innovation: Understanding Mediating Roles of Team Cohesion, Team Knowledge Collaboration and Team Bound-ary Management

    Get PDF
    This study is important as it seeks to fill the existing gap in the existing literature on the interactions between visionary leadership and team innovation in the context of the palm oil industry which is confronted with the challenge of achieving profitability while operating in an environmentally sus-tainable manner. The study sets out to investigate the impact of visionary leadership on the innova-tion exhibited by the teams while focusing on team cohesion, team knowledge collaboration and team boundary management as the mediating variables. A quantitative explanatory design was adopted and data was collected from 280 respondents in nine palm oil factories in Rokan Hulu Re-gency, Riau Province, Indonesia. Databases include Structural Equation Modeling (SEM) Managed to achieve data processing and analysis of the relationships among the variables. The results show that anyway, visionary leadership is a strong contributor to team innovation, both directly and indi-rectly, through its principles such as teamwork, boundary management, and even collaboration. From these findings, it is critical to highlight that visionary leadership is key in enhancing the team work environment and the team collaboration potention which in the long run triggers innovation. Such management practices should focus on how to develop leadership that drives sharing of knowledge and boundary management as this improves the innovation capabilities of the firm

    Perbandingan Dua Model Pertumbuhan dalam Analisis Pertumbuhan Itik Magelang di Balai Pembibitan dan Budidaya Ternak Non Ruminansia (BPBTNR) Banyubiru

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    Tujuan penelitian adalah untuk mengetahui model kurva pertumbuhan Itik Magelang mulai dari umur 0 minggu sampai 8 minggu dan mencari bobot dewasa itik Magelang. Penelitian ini diharapkan memperoleh informasi pertumbuhan dan menggambarkan pola pertumbuhan Itik Magelang selama 8 minggu, serta mendapatkan bobot dewasa itik Magelang. Materi yang digunakan dalam penelitian ini adalah Itik Magelang generasi ke-2 (G2) yang diperoleh dari perkawinan itik Magelang generasi pertama (G1) dan pakan yang digunakan adalah BR1. Penelitian dilaksanakan dalam tiga tahapan,yaitu persiapan, pelaksanaan dan analisis data. Data yang digunakan dalam penelitian ini adalah data bobot badan itik Magelang jantan dan betina G2, yang merupakan hasil dari penimbangan jantan 113 ekor dan betina 184 ekor yang diperoleh dari 15 kali periode penetasan, mulai umur 0 minggu sampai dengan 8 minggu dengan penimbangan 3 hari sekali. Data dianalisis dengan menggunakan model Gompertz dan Logistic pada program komputer yaitu SAS v6.12. Hasil menunjukkan kedua model kurva pertumbuhan menunjukkan tingkat akurasi yang berbeda. Persamaan regresi model Gompertz pada itik jantan Y= 2.386,88 exp (-3,89 exp -0,03), betina Y= 1.760,02 exp (-3,78 exp -0,05) dan poolsex (Y=1.986,90 exp (-3,82 exp-0,03), sedangkan model Logistic pada itik jantan Y= 1.558,17 / (1+19,78 exp -0,08), betina Y= 1.248,90 / (1+18,44 exp -0,08) dan poolsex Y=1.364,89/(1+18,94 exp-0,08). Laju pertumbuhan (K) model Gompertz lebih kecil dari Logistic, bobot dewasa (A) model Gompertz lebih besar dari Logistic. Itik jantan, betina dan poolsex pada model Logistic terjadi waktu infleksi yang cepat dan bobot yang rendah dibandingkan model Gompertz, masing-masing adalah Yi=779 g, ti=39,27 hari; Yi= 624,45 g, ti=36,43 hari dan Yi=628,45 g, ti=37,71 hari, sedangkan Gompertz pada itik jantan, betia dan poolsex masing-masning Yi=878,08 g, ti=42,93 hari; Yi= 647,48 hari, ti=37,65 g dan Yi=703,94 g, ti= 39,72 hari. Tingkat keakuratan pada setiap model analisis diketahui dengan melihat Akaike Information Criterion (AIC) dan R2. Model Gompertz memiliki R2 dan AIC kecil pada itik jantan, betina dan Poolsex masing-masing 92,141, 94,451 dan 93,706, sedangkan AIC jantan, betina dan Poolsex pada model Logistic masing-masing 122,835, 129,222, 125,243 dan rata-rata R2 pada model Gompertz dan Logistic masing-masing 0,999 dan 0,998. Kesimpulan dari penelitian ini adalah dengan melihat hasil analisis perbandingan kedua model matematik non linier antara model Gompertz dan Logistic yang dipakai dalam mencari kurva pertumbuhan itik Magelang, keduanya memiliki tingkat akurasi yang tinggi, namun secara umum pada model Gompertz memiliki tingkat akurasi yang lebih tinggi dibandingkan dengan model Logistic
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