29 research outputs found
Sulfonasi Minyak Jarak Pagar (Jatropha curcas) dan Uji Potensinya sebagai Wetting Agent
No full textABSTRAK Sari, Yulia Rahma. 2014. Sulfonasi Minyak Jarak Pagar (Jatropha curcas) dan Uji Potensinya sebagai Wetting Agent. Skripsi, Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Malang. Pembimbing:(1) Drs. H. Parlan, M.Si, (2) Dr. Siti Marfu’ah, M.S. Kata-kata kunci: minyak jarak pagar, sulfonasi, dan wetting agent. Wetting agent merupakan surfaktan yang efektivitasnyadiukur denganpeningkatanpenyebarancairandi permukaanatausudut kontakcairandenganpermukaan. Wetting agent diaplikasikan dalam banyak industri seperti vernis, cat, farmasi, dan kosmetik. Surfaktan yang selama ini banyak digunakan berasal dari turunan minyak bumi dan gas alam, namun proses pembuatan surfaktan tersebut dapat menimbulkan pencemaran lingkungan. Alternatif yang dapat diambil adalah menggunakan minyak nabati sebagai bahan baku pembuatan surfaktan. Bahan baku surfaktan yang diperoleh dari minyak nabati menghasilkan surfaktan yang ramah lingkungan, dapat terurai, dan dapat diperbaharui. Tujuan dari penelitian adalah (1) Mengetahui proses sulfonasi minyak jarak pagar dengan pereaksi asam sulfat, (2) Mengetahui karakter hasil sulfonasi minyak jarak pagar, (3) Mengetahui potensi hasil sulfonasi minyak jarak pagar sebagai wetting agent. Penelitian ini dilakukan di Laboratorium Kimia Fakultas MIPA Univeritas Negeri Malang. Langkah-langkah dalam penelitian iniyaitu (1) Karakterisasi minyak jarak pagar, meliputi: Penentuan massa jenis, indeks bias, bilangan asam, bilangan penyabunan, dan bilangan iod, (2) Sulfonasi minyak jarak pagar, (3) Karakterisasi hasil sulfonasi, meliputi: Penentuan massa jenis, indeks bias, bilangan asam, bilangan penyabunan, dan bilangan iod, (4) Analisis hasil sulfonasi dengan Kromatografi Lapis Tipis, (5) Identifikasi gugus fungsi hasil sulfonasi dengan menggunakan spekrofotometri FT-IR, dan (6) Uji penurunan tegangan permukaan hasil sulfonasi, dan (7) Penentuan nilai HLB (Hydrophile Lypophile Balance). Proses sulfonasi minyak jarak pagar dilakukan dengan menambahkan asam sulfat pekat berlebih pada suhu 35°C yang selanjutnya dicuci dengan akuades dan ditambahkan dengan larutan NaOH 0,1 N. Hasil sulfonasi mempunyai karakter yaitu massa jenis sebesar 0,944 g/mL, indeks bias sebesar 1,47539, bilangan penyabunan sebesar 161,76 mg KOH/g minyak, dan bilangan iod sebesar 1,27g I2/100 g minyak. Hasil sulfonasi mempunyai sifat sebagai penurun tegangan permukaan dan mempunyai nilai HLB sebesar 9 sehingga berpotensi sebagai wetting agent
Variasi Leksikal Bahasa Minangkabau di Kecamatan X Koto Singkarak Kabupaten Solok: Tinjauan Dialektologis
Get PDFRahma Yulia Sari. 1710722027. “Variasi Leksikal Bahasa Minangkabau di Kecamatan X Koto Singkarak Kabupaten Solok: Tinjauan Dialektologis”. Skripsi. Jurusan Sastra Indonesia. Fakultas Ilmu Budaya. Universitas Andalas, 2022. Pembimbing I: Prof. Dr. Nadra, M.S. dan Pembimbing II: Dra. Noviatri, M.Hum.
Penelitian variasi leksikal di Kecamatan X Koto Singkarak Kabupaten Solok ini bertujuan untuk: 1) mendeskripsikan variasi leksikal yang terdapat dalam bahasa Minangkabau di Kecamatan X Koto Singkarak, 2) memetakan persebaran variasi leksikal yang terdapat pada bahasa Minangkabau di Kecamatan X Koto Singkarak, dan 3) menentukan persentase perbedaan variasi leksikal antartitik pengamatan yang terdapat dalam bahasa Minangkabau di Kecamatan X Koto Singkarak, Kabupaten Solok.
Metode dan teknik penyedian data yang digunakan adalah metode cakap dengan teknik dasar: teknik pancing dan teknik lanjutan, yakni teknik cakap semuka, teknik rekam, dan teknik catat. Dalam analisis data, digunakan metode padan referensial dan metode padan translational dengan teknik pilah unsur penentu (PUP) sebagai teknik dasar dan teknik hubung banding membedakan (HBB) sebagai teknik lanjutan. Selanjutnya, dalam penyajian hasil analisis data digunakan metode formal dan metode informal.
Berdasarkan hasil penelitian yang dilakukan, (1) terdapat 149 data variasi leksikal dari 545 daftar tanya berupa kosakata yang diajukan kepada informan di Kecamatan X Koto Singkarak; (2) sebanyak 149 data yang berbeda tersebut kemudian dipetakan dalam bentuk sistem lambang; (3) hasil penghitungan dialektometri variasi leksikal antartitik pengamatan yang terdapat pada bahasa Minangkabau di Kecamatan X Koto Singkarak, Kabupaten Solok termasuk dalam kategori tidak adanya perbedaan karena persentase yang ditemukan berkisar antara 12,84%–19,26%. Hal ini disebabkan karena secara geografis jarak masing-masing titik pengamatan cukup berdekatan dan masyarakatnya hidup berdampingan sehingga bahasa Minangkabau yang digunakan tidak terlalu banyak memiliki perbedaan.
Kata Kunci: dialektologi, variasi leksikal, bahasa Minangkaba
Pengaruh Disiplin Kerja Terhadap Produktivitas Kerja Karyawan pada PT. Perkebunan Nusantara IV (Persero) Unit Usaha Pabatu
Get PDFPenelitian ini dilatar belakangi oleh masalah produktivitas kerja karyawan
yang masih belum diharapkan secara maksimal dikarenakan oleh masalah disiplin
kerja yang tidak sesuai dengan peraturan yang ada diperusahaan.
Penelitian ini dilakukan bertujuan untuk mengetahui pengaruh disiplin kerja
terhadap produktivitas kerja karyawan pada PT. Perkebunan Nusantara IV (Persero)
Unit Usaha Pabatu. Populasi dalam penelitian ini adalah seluruh karyawan bagian
afdeling, teknik/ pengolahan, dan umum pada PT. Perkebunan Nusantara IV (Persero)
Unit Usaha Pabatu sebanyak 1031 orang. Dengan demikian jumlah responden yang
digunakan dalam penelitian ini sebanyak 104 orang.
Berdasarkan hasil penelitian diperoleh hasil uji t pada variabel mematuhi
semua peraturan perusahaan yaitu = 2,652 > T tabel = 1,980 menyatakan bahwa
mematuhi semua peraturan perusahaan berpengaruh positif dan signifikan terhadap
produktivitas kerja karyawan pada PT. Perkebunan Nusantara IV (Persero) Unit
Usaha Pabatu. Penggunaan waktu secara efektif berdasarkan hasil penelitian
diperoleh yaitu 3,069 < T tabel = 1,980 menyatakan bahwa penggunaan waktu secara
efektif berpengaruh positif dan signifikan terhadap produktivitas kerja karyawan pada
PT. Perkebunan Nusantara IV (Persero) Unit Usaha Pabatu .Tanggung jawab dalam
pekerjaan dan tugas yaitu 5,467 > T tabel = 1,980 menyatakan bahwa tanggung jawab
dalam pekerjaan dan tugas berpengaruh positif dan signifikan terhadap produktivitas
kerja karyawan pada PT. Perkebunan Nusantara IV (Persero) Unit Usaha Pabatu.
Tingkat absensi yaitu = 1,200 < T tabel = 1,980 berpengaruh positif dan tidak signifikan
terhadap produktivitas kerja karyawan berpengaruh positif dan signifikan terhadap
produktivitas kerja karyawan pada PT. Perkebunan Nusantara IV (Persero) Unit
Usaha Pabatu. Hasil uji simultan diperoleh yaitu 187,774 ≥ 2,31 menyatakan bahwa
disiplin kerja secara simultan berpengaruh positif dan signifikan terhadap
produktivitas kerja karyawan pada PT. Perkebunan Nusantara IV (Persero) Unit
Usaha Pabatu. Dan nilai R yang diperoleh sebesar 0,884. Angka tersebut
menunjukkan bahwa sebesar 88,4% produktivitas kerja dijelaskan oleh variabel
disiplin kerja. Dengan begitu pentingnya disiplin kerja yang akan meningkatkan
produktivitas kerja karyawan, sehingga perlu diperhatikan kondisi disiplin karyawan
dalam perusahaan.This research is based on the problem of work productivity of employees who
still have not expected maximally due to the problem of work discipline that is not in
accordance with existing regulations in the company.
This study aims to determine the effect of work discipline on employee
productivity at PT. Perkebunan Nusantara IV (Persero) Pabatu Business Unit.
Population in this research is all employees of afdeling, engineering / processing, and
general at PT. Perkebunan Nusantara IV (Persero) of Pabatu Business Unit is 1031
people. Thus the number of respondents used in this study as many as 104 people.
Based on the results of the study, the results of the t-test on the variables
comply with all company regulations, namely = 2.652> T table = 1.980 stating that
obeying all company regulations has a positive and significant effect on employee
work productivity at PT. Perkebunan Nusantara IV (Persero) Pabatu Business Unit.
Effective use of time based on the results of the research is 3.069 < T table = 1.980
which states that the effective use of time has a positive and significant effect on
employee work productivity at PT. Perkebunan Nusantara IV (Persero) Pabatu
Business Unit. Responsibility for work and duties is 5.467> T table = 1.980 states that
the responsibilities in work and tasks have a positive and significant effect on
employee work productivity at PT. Perkebunan Nusantara IV (Persero) Pabatu
Business Unit. The absentee level is = 1,200 < T table = 1,980 positive and not
significant effect on employee work productivity has a positive and significant effect
on employee work productivity at PT. Perkebunan Nusantara IV (Persero) Pabatu
Business Unit. The simultaneous test results obtained were 187,774 ≥ 2,31 which
stated that work discipline simultaneously had a positive and significant effect on the
work productivity of employees at PT. Perkebunan Nusantara IV (Persero) Pabatu
Business Unit. And the R value obtained is 0.884. This figure shows that 88.4% of
work productivity is explained by the variable work discipline. Thus the importance
of work discipline that will increase employee work productivity, so it is necessary to
pay attention to the disciplinary conditions of employees in the company
Komunikasi Politik dan Branding Pemimpin Politik Melalui Media Sosial: A Conceptual Paper
Get PDFThe presence of digital media, such as social media allows us to connect without any limitations of space and time. Consumption of social media brings changes in various aspects of life, including the habits of communicating and interacting in today's network society. In the political field, social media creates opportunities for political leaders to carry out political communication. As a strategic political communication channel, social media plays a role in receiving and responding to public aspirations. In fact, the use of social media for campaigns by political leaders shows a trend of increasing popularity and electability due to the influence of branding on social media. The use of social media by political leaders in building specific branding is at the core of this article. Political leaders optimize their personal social media accounts for political communication. The positive perception of the public allows for an increase in popularity and electability which brings to the national political stage. This article is a conceptual paper that analyzes the concept of branding in politics in the era of digital political communication by utilizing social media. The author uses relevant literature reviews from previous studies. This article reveals that several political leaders that have been studied have optimized social media to carry out political communication to their citizens. They display digital content to gain public support and trust, and display branding as a populist, professional, humanist, and responsible political leader
ANALISIS PENGARUH TINGKAT LITERASI KEUANGAN DAN PERSEPSI RISIKO TERHADAP KEPUTUSAN INVESTASI PEER TO PEER LENDING DALAM PERSPEKTIF BISNIS ISLAM (Studi Pada Investor Lahan Sikam)
Get PDFABSTRAK
Di Indonesia sendiri sudah bergerak dibidang Peer to Peer
Lending salah satunya adalah Lahan Sikam. Ketika memutuskan
untuk berinvestasi, seseorang akan membutuhkan literasi keuangan
yang baik dan teratur agar dapat mengambil keputusan investasi yang
baik. Adapun hal lain yang harus dipertimbangkan ketika memutuskan
untuk berinvestasi adanya persepsi terhadap risiko yang akan
dihadapi. Berdasarkan uraian latar belakang, maka penulis bermaksud
melakukan penelitian yang berjudul “Pengaruh Literasi Keuangan dan
Persepsi Risiko Terhadap Keputusan Investasi Peer To Peer Lending
(Studi Pada Investor Lahan Sikam).” Tujuan penelitian ini adalah
untuk mengetahui pengaruh literasi keuangan dan persespsi risiko
terhadap keputusan berinvestasi pada peer to peer lending para
Investor Lahan Sikam.
Penelitian ini termasuk penelitian lapangan (field research)
dengan pendekatan kuantitatif. Responden dalam penelitian ini adalah
para Investor Lahan Sikam sebanyak 266 orang. Teknik pengumpulan
data dengan angket. Teknik analisa data dengan menggunakan analisis
regresi berganda dan uji uji hipotesis dengan uji T, uji F, dan uji
koefisien determinasi.
Hasil penelitian mengemukakan bahwa literasi keuangan
berpengaruh terhadap keputusan berinvestasi pada peer to peer
lending para Investor Lahan Sikam. Semakin meningkat literasi
keuangan yang dimiliki para investor Lahan Sikam, maka akan
semakin meningkatkan keputusan investasinya. Persepsi risiko
berpengaruh terhadap keputusan berinvestasi pada peer to peer
lending para Investor Lahan Sikam. Semakin meningkat persepsi
risiko yang dimiliki para investor Lahan Sikam, maka akan semakin
meningkatkan keputusan investasinya. Perspekstif bisnis Islam
terhadap keputusan investasi para investor Lahan Sikam merupakan
hakikat kehidupan dunia ini adalah mencari bekal untuk akhirat. Hal
ini merupakan konsep perilaku seorang muslim yang mempengaruhi
aktivitasnya di dunia, termasuk tujuan dalam berinvestasi
sebagaimana yang dijelaskan dalam QS Al-Baqarah ayat 261.
Kata Kunci : Literasi Keuangan, Persepsi Risiko, Keputusan
Investasi, Peer To Peer Lending. ABSTRACT
Indonesia already engaged in Peer to Peer Lending, one of
which is Lahan Sikam. When deciding to invest, someone will need
good and regular financial literacy in order to make good investment
decisions. Another thing that must be considered when deciding to
invest is the perception of the risks that will be faced. Based on the
background description, the author intends to conduct research
entitled "The Influence of Financial Literacy and Risk Perception on
Peer To Peer Lending Investment Decisions (Study of Sikam Land
Investors)." The aim of this research is to determine the influence of
financial literacy and risk perception on the decision to invest in peer
to peer lending among Sikam Land Investors.
This research includes field research with a quantitative
approach. The respondents in this research were 266 Sikam Land
Investors. Data collection techniques using questionnaires. The data
analysis technique uses multiple regression analysis and hypothesis
testing using the T test, F test, and coefficient of determination test.
he research results show that financial literacy influences the
decision to invest in peer to peer lending among Sikam Land
Investors. The more financial literacy that Sikam Land investors have,
the more their investment decisions will improve. Risk perception
influences the decision to invest in peer to peer lending for Sikam
Land Investors. The greater the risk perception that Sikam Land
investors have, the greater their investment decisions will be. The
Islamic business perspective on the investment decisions of Sikam
Land investors is that the essence of life in this world is to seek
provisions for the afterlife. This is a concept of a Muslim's behavior
that influences his activities in the world, including his investment
goals as explained in QS Al-Baqarah verse 261.
Keywords: Financial Literacy, Risk Perception, Investment
Decisions, Peer To Peer Lending
PENGARUH DISIPLIN KERJA TERHADAP PRODUKTIVITAS KERJA KARYAWAN PT PERKEBUNAN NUSANTARA IV (PERSERO) UNIT USAHA PABATU
Get PDFThis study was conducted to determine the effect of work discipline on employee productivity at PT. Perkebunan Nusantara IV (Persero) Pabatu Business Unit. The population in this study were all employees of the department, engineering / processing, and general at PT. Perkebunan Nusantara IV (Persero) Unit Business Unit is 1031 people. the number of respondents used in this study were 104 people. The research was obtained from the results of the t test on the variables obeying all company regulations, namely 2.652> T table = 1.980 stating that complying with all company regulations had a positive and significant effect on employee work productivity. Effective use of time is 3,069 <Ttable = 1,980 stating that effective use of time has a positive and significant effect on employee work productivity variables. Responsibility for work and assignments is 5,467> T table = 1.980 states that work responsibilities and tasks have positive and significant to employee work productivity. The absentee level of 1,200 <Ttable = 1,980 has a positive and insignificant effect on employee work productivity. The simultaneous test results obtained are 262.880> 2.31, which states that work discipline simultaneously has a positive and significant effect on employee work productivity. And the R value obtained is 0.884. This figure shows that 88.4% of work productivity is explained by the variable work discipline
Analysis of Student Participation in STEM-Based Robotics Lessons Using Transcript-Based Lesson Analysis
Get PDFThis study aims to analyze student engagement in STEM-based robotics learning at SMP IT Nurul Ilmi, Jambi City. The research was conducted using the Lesson Study approach and the Transcript-Based Lesson Analysis (TBLA) technique to examine student engagement based on the following indicators: actively working on learning tasks, asking questions to teachers or peers, seeking information to solve problems, participating in group discussions, assessing acquired skills/results, practicing similar problem-solving, and applying learning outcomes to new tasks. Data were collected through observations, audio recordings, and transcript analysis using Excel, presented in percentage form. The results show that the most prominent indicator was active involvement in completing learning tasks (38 percent), while the lowest indicators were practicing similar problem-solving (2 percent) and seeking information to solve problems (0.13 percent). These findings indicate that STEM-based robotics learning can foster student participation in core activities but has not yet fully developed scientific skills that serve as an essential foundation in science learning, such as observing phenomena, formulating questions, seeking information, and re-examining concepts through similar problems. Therefore, the implementation of robotics learning in the context of science education needs to be designed to train students in independent exploration, critical thinking, and transferring knowledge to new situations in accordance with the characteristics of science learning to support 21st century skills
Forecasting Produksi Perikanan Budidaya Di Kota Palembang Dengan Metode Autoregressive Integrated Moving Average (ARIMA)
Get PDFThe number of aquaculture households in Palembang City continues to increase from 2017 only 682 households to 1,050 households in 2018. But on the contrary in terms of the amount of aquaculture production, the total production decreased by 24,259 tons in 2014 and only 20,327 tons in 2017 (BPS, 2018). One of the steps that can be taken to determine the condition of aquaculture in Palembang is by doing forecasting. This is useful for knowing or predicting the results of aquaculture production with precise accuracy. This study aims to determine the prediction of aquaculture production in Palembang City using the Autoregressive Integrated Moving Average (ARIMA) method. The results of the ACF and PACF plots show that both plots have a tail off pattern. the predictive model obtained is ARIMA (1,0,1) but after over fitting the model, the ARIMA model (2,0,1) is the best model because it has the smallest MAPE value, which is 48,30. Based on the ARIMA model (2,0.1), the forecast values for aquaculture production in Palembang City from 2021 to 2030 are 19542,598 tons, 12846,331 tons, 50682,093 tons, 43389,831 tons, 15352,492 tons. , 9595,313 tons, 26140,949 tons, 36258,543 tons, 29041,898 tons, and 19548.050 ton
Pengaruh Penggunaan Gadget pada Rendahnya Pola Pikir pada Anak Usia Sekolah (6-12 Tahun) di SDN Gempol Sari Kabupaten Tangerang
Get PDFThis study aims to determine the extent of the influence of gadgets on school-age children, especially on the low mindset of children at SDN Gempol Sari, Tangerang Regency, and how the efforts of parents in providing supervision and direction to their children. This type of research is qualitative with case study method. The instruments used are observation, interviews, and documentation. Meanwhile, for data analysis, researchers used descriptive-analytic techniques. The analyzed data was then tested for validity using credibility, transferability, dependability, and confirmability tests. The results of this study indicate that there is an influence of gadgets on the low mindset of children at the age of 6-12 years, and the mindset is fast developing. This research is far from perfect, the author realizes that there are limitations in the research process, one of which is that the subject and object of research are only taken within the family scope. This research is expected to be useful in the world of education, especially educators and the family environment as a reference in implementing digital parenting for their children
Pelatihan Pembuatan Instrumen Penilaian Produk pada Guru SDIT An Nahl Islamic School Pegasing
Get PDFThe service that the author carries out at SDIT An Nahl Islamic School Pegasing is providing training in making product assessment instruments to teachers at the school. This training aims to provide teachers with understanding and skills in compiling and creating product assessment instruments. The method the author uses is CBPR (Community Based Participatory Research). This method is a method used to connect two groups, namely academics and the community, by carrying out community service activities according to the needs of the community. From the training provided, it was found that teachers stated that this training was beneficial for teacher skills, teachers felt that they were able to create product assessment instruments and teacher skills were good at designing, compiling and making product assessment instruments
