LAPORAN INDIVIDU PRAKTIK PENGALAMAN LAPANGAN (PPL) DI SMK MUHAMMADIYAH 1 BANTUL

Praktik Pengalaman Lapangan (PPL) merupakan salah satu mata kuliah yang wajib ditempuh oleh setiap mahasiswa S1 pendidikan di semua jurusan. Kegiatan ini mempunyai visi untuk memberikan pengalaman dan kesempatan bagi mahasiswa untuk belajar menjadi guru atau tenaga kependidikan yang profesional. Adapun tujuan pelaksanaan Praktik Pengalaman Lapangan adalah untuk memberikan pengalaman kepada mahasiswa tentang bagaimana mengatur jalanya proses belajar mengajar dikelas, serta menyusun strategi, metode dan media pembelajaran dikelas. Praktik mengajar yang dilakukan akan memberikan pengalaman sekaligus referensi kepada mahasiswa terhadap kenyataan yang ada dilapangan, terutama yang berkaitan erat dengan kondisi dan perilaku siswa, sehingga dapat menentukan sikap, strategi , metode, dan media pembelajaran dengan cepat dan tepat. Pelaksanaan PPL berlokasi di SMK Muhammadiyah 1 Bantul yang beralamat di jalan Parangtritis Km. 12 Manding, Trirenggo, Bantul. Berdasarakan hasil observasi ada beberapa hal yang perlu dipersiapkan sebelum mengajar yaitu materi yang akan diajarkan dan administrasi guru yang meliputi silabus, RPP, analisis soal, penilaian dan lain-lain. Program PPL terbagi menjadi dua, yaitu praktik mengajar terbimbing dan praktik mengajar mandiri. Praktik mengajar mandiri dilakukan sebanyak 6 kali tatap muka pada pelajaran teknik gambar manufaktur. Hasil dari penilaian mata diklat teknik gambar manufaktur diperoleh untuk kelas XI TP 1 nilai rata-rata 66,76, XI TP 2 nilai rata rata 67,56, kelas XI TP 3 nilai rata-ratanya 68,89 dan kelas XI TP 4 nilai rata-ratanya 71,63. Hasil yang didapatkan belum memenuhi KKM untuk itu diberikan kesempatan perbaikan kepada siswa yang mendapatkan nilai kurang dari KKM supaya bisa tuntas KKM. Setelah kegiatan penilaian selesai, maka tahap selanjutnya yaitu menganalisis permasalahan yang dialami siswa. Analisis yang dilakukan meliputi analisis kesulitan butir soal dan analisis materi. Permasalahan-permasalahan itulah yang nanti akan digunakan untuk menentukan jenis metode, strategi, dan media pembelajaran yang selanjutnya. Selama kegiatan PPL banyak pelajaran dan pengalaman yang sangat berharga baik pengalaman akademik maupun non-akademik. Setelah kegiatan PPL harapannya semakin memahami dan menghayati tentang proses pendidikan disekolah. Kerjasama dan komunikasi yang baik antara semua pihak merupakan cara yang ampuh untuk mengatasi permasalahan tersebut, sehingga kedepan akan menghasilkan sesuatu yang bermanfaat bagi perkembangan sekolah, siswa dan mahasiswa

Macroeconomic factors and LQ45 stock price index: evidence from Indonesia

This paper provides the relationship between macroeconomic variables, including exchange rate, BI rate and inflation, and stocks performance, particulary bluechip stocks listed in LQ45 index in Indonesia Stock Exchange. The study particularly gives insights on bluechip stocks listed in LQ45 stock price index in Indonesia Stock Exchange between 2015 and 2017. The data were obtained from various sources during the period, including the Indonesia Stock Exchange (IDX), the Central Bank of Indonesia (BI), and the Ministry of Trade. This study followed a Vector Error Correction Model (VECM) attempting to estimate the relationship between variables both in the short term and in the long term. The findings of the study showed that in the long run, exchange rate, BI rate and inflation have a negative impact on stock market performance, particularly on LQ45 index in Indonesia Stock Exchange. It implies that an increase in macroeconomic variables results in the decline of stock market performance. Meanwhile, in the short run, two variables, namely the exchange rate and inflation, positively affect stock market performance in Indonesia. On the contrary, the relationship between BI rate and stock market performance showed a negative correlation. These findings have significant implication for the understanding of how macroeconomic variables affect the stock market performance, particularly LQ45 price index in Indonesia Stock Exchange

Hydrophylicity Enhancement of Modified Cellulose Acetate Membrane to Improve the Membrane Performance in Produced Water Treatment

Produced water is a wastewater generated from petroleum industry with high concentration of pollutants such as Total Dissolved Solid, Organic content, and Oil and grease. Membrane technology has been currently applied for produced water treatment due to its efficiency, compact, mild and clean process. The main problem of produced water using membrane is fouling on the membrane surface which causes on low permeate productivity. This paper is majority focused on the improvement of anti-fouling performance through several modifications to increase CA membrane hydrophilicity. The membrane was prepared by formulating the dope solution consists of 18 wt-% CA polymer, acetone, and PEG additive (3 wt-%, 5 wt-%, and 7 wt-%). The membranes are casted using NIPS method and being irradiated under UV light exposure. The SEM images show that parepared membrane has asymmetric structure consist of dense layer, intermediete layer, and finger-like support layer. The filtration test shows that PEG addition increase the membrane hydrophilicity and the permeate flux increases. UV light exposure on the membrane improves the membrane stability and hydrophilicity. The imrpovement of membrane anti-fouling performance is essential to achieve the higher productivity without lowering its pollutants rejection

Hydrophylicity Enhancement of Modified Cellulose Acetate Membrane to Improve the Membrane Performance in Produced Water Treatment

Produced water is a wastewater generated from petroleum industry with high concentration of pollutants such as Total Dissolved Solid, Organic content, and Oil and grease. Membrane technology has been currently applied for produced water treatment due to its efficiency, compact, mild and clean process. The main problem of produced water using membrane is fouling on the membrane surface which causes on low permeate productivity. This paper is majority focused on the improvement of anti-fouling performance through several modifications to increase CA membrane hydrophilicity. The membrane was prepared by formulating the dope solution consists of 18 wt-% CA polymer, acetone, and PEG additive (3 wt-%, 5 wt-%, and 7 wt-%). The membranes are casted using NIPS method and being irradiated under UV light exposure. The SEM images show that parepared membrane has asymmetric structure consist of dense layer, intermediete layer, and finger-like support layer. The filtration test shows that PEG addition increase the membrane hydrophilicity and the permeate flux increases. UV light exposure on the membrane improves the membrane stability and hydrophilicity. The imrpovement of membrane anti-fouling performance is essential to achieve the higher productivity without lowering its pollutants rejection

Ultrasound-Assisted Encapsulation of Citronella Oil in Alginate/Carrageenan Beads: Characterization and Kinetic Models

The objective of this research was to investigate the effect of ultrasonication on citronella oil encapsulation using alginate/carrageenan (Alg/Carr) in the presence of sodium dodecyl sulfate (SDS). The functional groups of microparticles were characterized using Fourier transform infrared spectroscopy (FTIR), and the beads’ morphologies were observed using a scanning electron microscope (SEM). The FTIR results showed that the ultrasonication process caused the C-H bonds (1426 cm−1) to break down, resulting in polymer degradation. The SEM results showed that the ultrasonication caused the presence of cavities or pores in the cracked wall and a decrease in the beads’ size. In this study, the use of ultrasound during the encapsulation of citronella oil in Alg/Carr enhanced the encapsulation efficiency up to 95–97%. The kinetic evaluation of the oil release of the beads treated with ultrasound (UTS) showed a higher k1 value of the Ritger–Peppas model than that without ultrasonication (non-UTS), indicating that the oil release rate from the beads was faster. The R/F value from the Peppas–Sahlin model of the beads treated with UTS was smaller than that of the non-UTS model, revealing that the release of bioactive compounds from the UTS-treated beads was diffusion-controlled rather than due to a relaxation mechanism. This study suggests the potential utilization of UTS for controlling the bioactive compound release rate

Ultrasound-Assisted Encapsulation of Citronella Oil in Alginate/Carrageenan Beads: Characterization and Kinetic Models

The objective of this research was to investigate the effect of ultrasonication on citronella oil encapsulation using alginate/carrageenan (Alg/Carr) in the presence of sodium dodecyl sulfate (SDS). The functional groups of microparticles were characterized using Fourier transform infrared spectroscopy (FTIR), and the beads’ morphologies were observed using a scanning electron microscope (SEM). The FTIR results showed that the ultrasonication process caused the C-H bonds (1426 cm−1) to break down, resulting in polymer degradation. The SEM results showed that the ultrasonication caused the presence of cavities or pores in the cracked wall and a decrease in the beads’ size. In this study, the use of ultrasound during the encapsulation of citronella oil in Alg/Carr enhanced the encapsulation efficiency up to 95–97%. The kinetic evaluation of the oil release of the beads treated with ultrasound (UTS) showed a higher k1 value of the Ritger–Peppas model than that without ultrasonication (non-UTS), indicating that the oil release rate from the beads was faster. The R/F value from the Peppas–Sahlin model of the beads treated with UTS was smaller than that of the non-UTS model, revealing that the release of bioactive compounds from the UTS-treated beads was diffusion-controlled rather than due to a relaxation mechanism. This study suggests the potential utilization of UTS for controlling the bioactive compound release rate

MANAJEMEN KEUANGAN INTERNASIONAL

Tren globalisasi bisnis telah terdokumentasi dengan baik yang terlihat dalam laporan-laporan keuangan dari korporasi-korporasi besar dan kecil. Tren ke arah globalisasi tersebut didorong oleh penurunan hambatan batas negara. Oleh sebab itu pemahaman atas manajemen keuangan internasional menjadi sangat penting bagi keberhasilan perusahaan. Pemahaman dan pengertian yang berkaitan dengan pentingnya pasar keuangan internasional, penentu exchange rate, investasi asing langsung, penganggaran modal multinasional, pendanaan jangka panjang bagi perusahaan multinasional, analisa risiko negara serta pendanaan perdagangan internasional. Manajemen Keuangan Internasional merupakan suatu perencanaan, pengorganisasian, dan pengendalian keuangan pada suatu Perusahaan Multinasional (Multinational Corporation yang sering disebut MNC) yang merupakan perusahaan yang beroperasi di seluruh dunia. Mereka adalah perusahaan besar yang dimiliki oleh kaum kapitalis Global yang pasarnya di Kanada, USA, Jepang, Jerman, Italia, Perancis dan Inggris. Perusahaan-perusahaan tersebut disebut konglomerat Global atau kapitalis Global yang ingin menguasai ekonomi dunia dan ekonomi negara-negara sedang berkembang dengan tujuan utama adalah mencari keuntungan. Perusahaan internasional berarti perusahaan yang beroperasi lebih dari satu negara. Perusahaan tersebut telah melakukan transaksi transnasional yang melewati batas-batas negara secara geografis. Pada masa ini, pertumbuhan perusahaan multinasional disebabkan karena perkembangan teknologi komunikasi dan transportasi. Perusahaan multinasional ini dipengaruhi oleh sosial, politik, dan ekonomi dunia. Modal mengalir begitu cepat dari berbagai negara ke berbagai negara. Perusahaan yang mampu mengembangkan usahanya di tingkat multinasional akan mampu menunjang keunggulan komperatif yang lebih tinggi dibandingkan perusahaan yang beroperasi dalam satu negara