bluuebunny/crossref_metadata_2025 huggingface dataset:
KONTRADIKSI DASAR PENGENAAN PAJAK PERATURAN PEMERINTAH NOMOR 46 TAHUN 2013
Authors: Hazimah Puan Indri Hazimah Indri , Irawan Ferry
Published: August 2019

AbstractThis research tries to elaborate the contradiction between Government Regulation number 46 of 2013 (PP 46/2013) and Article 4 paragraph 1 Law number 36 of 2008 (Income Tax Law) in addressing tax base. Also, it describes income tax simulation from PP 46/2013 an Income Tax Law perspective. This research is designed by applying literature review and field study method. We collect and analysis data throughout laws, text-books, and journals to obtain a a suitable framework related to the case discussed. Furthermore, we also conduct interview to find practical experience that cannot be found in literatures. A deep-interview is applied to the relevant officials. The result shows that usage of gross revenue to calculate tax base based on PP 46/2013 is quite suitable with the objective of the regulation, to simplify and support tax payers in fulfilling their tax-obligation. On the other hand, although the revenue is not appropriate with the definition of Income tax law, every additional economic capability, the provision is not against general rules. This is occurred because Article 17 paragraph 7 and Article 4 paragraph 2 letter (a) Income Tax Law allow certain income will be imposed by final income tax. Keyword:  Tax Base, Income, Gross Revenue, PP 46/2013
ALOKASI PENDAPATAN DAN LITERASI KEUANGAN Studi Kasus pada Desa Sidomukti Kecamatan Plaosan Kabupaten Magetan
Authors: Hidayah Nurul
Published: August 2019

AbstractThis study aims to determine the allocation of income and financial understanding to working housewives and housewives who do not work in the Village Sidomukti Plaosan District Magetan. This study used a survey method conducted to 80 respondents consisting of 40 housewives who do not work and 40 housewives who work. This research uses descriptive and explanative research method. This research is done by collecting data to describe and give more detailed explanation about phenomenon of research subject then explain the relationship between phenomena. The results of this study illustrate that there is no significant difference between housewives who do not work and work in the allocation of income. While the level of financial literacy with high categories more owned by working housewives. In addition, the relationship between the level of financial literacy with the allocation of income between both types of housewives has opposite results. Housewives who do not work with high levels of financial literacy are more efficient in allocating their income while for working mothers get the opposite. Keywords: Housewife, income allocation, financial literacy
ANALISIS KINERJA KEUANGAN PT. INDORIS PRINTINGDO BERSUMBER PADA KEPUTUSAN MENTERI BUMN NOMOR: KEP-100/MBU/2002
Authors: Wardokhi Wardokhi
Published: August 2019

ABSTRACT This reseaarch aims to determine the financial performance of PT. Indoris Printingdo, based on the Decree of the Minister of BUMN no. 100 / MBU / 2002 on Rating of State-Owned Enterprise Health Level during the period of 2013 - 2015. Data collection methods in this study is obtained by quoting directly from the financial statements in PT. Indoris Printingdo from 2013 to 2015. The analysis technique in this research is quantitative descriptive analysis. The data analysis used is based on the Decree of the Minister of BUMN no:100 / MBU / 2002.Based on the results of research known that the financial performance of PT. Indoris Printingdo based on Decree of the Minister of BUMN no.100 / MBU / 2002 is in 2013 to get the title of "HEALTHY A", in 2014 get the title "UNWELL BBB" and in 2015 the company get the title "HEALTHY AA". This shows the financial performance of PT. Indoris Printingdo is still in good category or experiencing increasing trend. Keywords : Financial performance and healthy level.
HUBUNGAN ANTARA KARAKTERISKTIK PRIBADI, PERSEPSI, DAN DORONGAN DARI PIHAK LAIN TERHADAP MAHASISWA UNTUK MEMILIH JURUSAN AKUNTANSI DI POLITEKNIK NEGERI BATAM
Authors: Yulinda Yulinda , Hasanah Afriyanti
Published: August 2019

AbstractThis research aimed to analyze the influence towards personal characteristic, preseption and encouragement from other parties towards to Students to select the majors in Accounting department in Politeknik Negeri Batam. This is supported by the number of students in choosing Accounting department in Politeknik Negeri Batam. Moreover, this study used primary data by taking data from Students in the first of semester from Accounting department. The results showed there is a relationship between personal characteristics and encouragement from other parties. Meanwhile, showed 1 hypothesis not supported in this study that there is no relationship perception of students to choose the department of Accounting in Politeknik Negeri Batam. Furthermore, this research can be an input for Politeknik Negeri Batam to see how much interest of student in choosing accounting majors and also for as input for in the future. Based on the study results, the conclusions and contribution for vocational education institutions, is important to improve the quality of applied Accounting department to be able to attract more students interest in choosing this department and to make qualified accounting graduates.Keywords: personal characteristic, preseption, encouragement from other partiesAbstrakPenelitian ini bertujuan untuk meneliti Hubungan antara karakterisktik pribadi, persepsi, dan dorongan dari pihak lain terhadap mahasiswa untuk memilih jurusan Akuntansi di Politeknik Negeri Batam. Hal ini didukung oleh bahwa banyaknya jumlah mahasiswa dalam memilih Jurusan akuntansi di Politeknik Negeri Batam. Penelitian ini menggunakan data primer dengan mengambil data dari Mahasiswa semester awal dari jurusan Akuntansi di Politeknik Negeri Batam. Hasil penelitian menunjukkan terdapat hubungan antara karakteristik pribadi dan dorongan dari pihak lain. Sementara itu menunjukkan 1 hipotesis tidak terdukung dalam penelitian ini yaitu tidak terdapat hubungan presepsi terhadap mahasiswa untuk memilih jurusan Akuntansi di Politeknik Negeri Batam. Penelitian ini bisa menjadi masukan bagi Politeknik Negeri Batam untuk melihat seberapa besar minat mahasiswa dalam memilih jurusan akuntansi dan juga untuk sebagai masukan untuk di kedepan hari. Kesimpulan dan kontribusi hasil dari penelitian ini, bagi institusi pendidikan vokasi, penting untuk meningkatkan mutu jurusan Akuntansi terapan untuk dapat menarik lagi minat mahasiswa dalam memilih jurusan ini dan menjadikan lulusan akuntansi yang berkualitas.Kata kunci: Karakteristik Pribadi, Presepsi, Dorongan dari Pihak lain
IDENTIFIKASI KEBERADAAN BENDA ASING PADA AREA PENGUKURAN TOMOGRAFI DENGAN MENGGUNAKAN METODA ELECTRICAL IMPEDANCE TOMOGRAPHY (EIT) BERBASIS LABVIEW
Authors: Wijaya Endang , Wijaya Sastra Kusuma
Published: August 2019

ABSTRACTEIT (Electrical Impedance Tomography) is one of several tomographic methods to estimate impedance distribution in a domain based on the measurement of a boundary area in a certain area. This method is widely used to observe the presence and growth of foreign matter in the area observed, such as cancer in the breast.In this study an instrument was designed to identify the presence and geometry of foreign objects, which were placed in the area of tomography measurement (phantom) in the form of three-dimensional (3D) images, Data acquisition instrument uses NI USB 6351 and LabVIEW (hard & software), with l testing and analysis of 3D image reconstruction using a modeling algorithm "n3r2",The test results can be concluded that the EIT instrument model is able to detect the presence and location of test samples placed in the tomography measurement area (phantom), although 3D images that appear to be unrepresentative illustrate the geometry of the test sample. This is due to an error in the data generated by three (3), namely S0-S1, S1-S2, and S31-S.Keysword : Method, EIT, LabView, 3D, algoritm”n3r2”ABSTRAKEIT (Electrical Impedance Tomography) adalah satu diantara beberapa metode tomografi untuk memperkirakan distribusi impedansi dalam suatu domain berdasarkan pengukuran daerah batas di tertentu. Metode ini banyak digunakan untuk mengamati keberadaan dan pertumbuhan benda asing pada daerah yang diamati, seperti kanker pada payudara.Dalam penelitian ini dirancang instrumen untuk mengidentifikasi keberadaan dan bentuk geometri benda asing, yang diletakkan pada daerah pengukuran tomografi (phantom) dalam bentuk gambar tiga dimensi (3D), Instrument akuisisi data menggunakan NI USB 6351 dan LabVIEW (hard & software),dengan l pengujian dan analisis rekonstruksi gambar 3D menggunakan dengan pemodelan algoritma “n3r2”,Hasil pengujian dapat disimpulkan bahwa model instrumen EIT mampu mendeteksi keberadaan dan lokasi sampel uji yang diletakkan`di dalam area pengukuran tomografi (phantom), meskipun gambar 3D yang nampak belum representatif menggambarkan bentuk geometri dari sampel uji. Hal ini disebabkan adanya kesalahan data yang dihasilkan oleh tiga (3) yaitu S0-S1, S1-S2, dan S31-S0.Kata kunci: Metode, EIT, LabView, 3D, algoritma”n3r2”
Perbandingan Performansi Single Web Server Dan Multi Web Server Dengan Uji Coba Paired Sample T Test
Authors: Arman Molavi
Published: August 2019

Abstract— The more the development of the era then the more advanced technology, where this technology is very helpful human in carrying out daily activities, in connection with it with the development of technology a person can use an internet, which the internet is very helpful to the user in obtaining information and can also be used as communication media. the web can also be said as a medium that is used as to access information through the internet, if more and more internet users to access the web it will cause the slow performance of the web server. Therefore in this paper the authors make a study on Comparison Performance Single Web Server And Multi Web Server With Different Test Using Paired Sample T Test. To see the performance between single and multi web server can be seen in terms of components Throughput, Response Time, CPU Utilization by using httpref application then to see test different between single web server and multi web server by using paired sample t test. The application of paired sample t test to see the difference test using the predefined hypothesis which to support the decision can be seen that the sig value obtained between the single server web server test and the multi server web server is 0,000 and the value is below 0.05, then based on the hypothesis it can be concluded that between single web server and multi web server there is significant difference from the test result..Keywords: Performansi, Server, Httperf, Web, Paired sample t test
Ubi Jalar Putih (Ipomoea Batatas L.) Media Alternatif Pertumbuhan Aspergillus Niger
Authors: Rohmi Rohmi , Fikri Zainal , Pujasari Ni Ketut Riska
Published: August 2019

Jamur Aspergilus niger menghasilkan alergan yang menyebabkan reaksi alergi, yaitu dapat menyebabkan reaksi hipersensitivitas seperti asma dan alveolitis  pada manusia. Ubi jalar putih (Ipomoea batatas L.) mengandung karbohidrat yang dapat digunakan sebagai pengganti sumber karbohidrat pada media PDA. Tujuan penelitian ini adalah untuk mengetahui pengaruh Penggunaan ubi jalar putih (Ipomoea batatas L.) sebagai media alternatif pertumbuhan jamur Aspergillus niger. Penelitian ini bersifat true eksperimet dengan menggunakan 6 replikasi dan 4 perlakuan yaitu media PDA sebagai kontrol, media tepung ubi jalar putih dengan konsentrasi 10%, 20%, dan 30%. Hasil uji laboratorium pada media PDA pertumbuhan diameter jamur Aspergilus niger adalah 43.5 mm dengan sporulasi lebat dan miselium tebal, pada media alternatif tepung ubi jalar putih (Ipomoea batatas L.) pada konsentrasi 10% memiliki pertumbuhan diameter jamur Aspergilus niger adalah 40.8 mm dengan sporulasi tipis dan miselium putih tipis, pada media alternatif tepung ubi jalar putih (Ipomoea batatas L.) pada konsentrasi 20% memiliki pertumbuhan diameter jamur Aspergilus niger adalah 57 mm dengan sporulasi cukup lebat dan miselium putih tipis, dan pada media alternatif tepung ubi jalar putih (Ipomoea batatas L.) pada konsentrasi 30% memiliki pertumbuhan diameter jamur Aspergilus niger adalah 37.5 mm dengan sporulasi cukup lebat dan miselium putih tipis. Dapat disimpulkan bahwa tepung ubi jalar putih (Ipomoea batatas L.) dapat digunakan sebagai media alternatif untuk pertumbuhan Aspergillus niger.
Faktor Penghambat Bidan Pada Pendidikan Jenjang Profesi Di Jurusan Kebidanan Poltekkes Kemenkes Surakarta
Authors: Prastyoningsih Aris , Yanti Yanti , Mawarti Retno
Published: August 2019

Tingginya morbiditas ibu dan anak serta berbagai permasalahan yang berhubungan dengan kesehatan ibu dan anak diperlukan peningkatan profesionalisme profesi bidan melalui jenjang pendidikan profesi. Sulitnya akses bagi bidan yang telah bekerja dalam pendidikan pendidikan berkelanjutan menurunkan motivasi dan minat bidan dalam melanjutkan pendidikan profesi. Tujuan penelitian ini untuk menggali faktor penghambat bidan pada penddikan jenjang profesi. Desain penelitian adalah grounded theory. Informan dalam penelitian yaitu 13 informan yang terdiri 9  bidan pelayanan yang melanjutkan jenjang profesi dan 4 informan pendukung dari organisasi Profesi Bidan, Puskesmas, Dinas Kesehatan dan Pendidikan Profesi Kebidanan. Pengambilan data dengan Focus Group Discusion (FGD), di lanjutkan wawancara mendalam. Analisis penelitian ini menggunakan teknik analisis tematik dengan cara mengidentifikasi tema-tema yang terpola. Tema-tema ini dapat diidentifikas, dikodekan secara induktif dari data kualitatif mentah. Hasil penelitian ditemukan 4 kata kunci yang menghambat bidan dalam pendidikan berkelanjutan pada jenjang profesi yaitu: jarak dan waktu, keluarga, perijinan, dan beban kerja. Pemahaman terhadap regulasi pendidikan bidan pada seluruh lapisan masyarakat sangat diperlukan untuk mengatasi berbagai hambatan dari berbagai faktor. Diperlukan kerjasama lintas sektoral dan lintas program agar bidan mendapat kemudahan dalam perijinan studi lanjut.
An Ecological Examination of Student Teachers’ Belief Development During the Teaching Practicum
Authors: Yang Xiaowan
Published: August 2019

Using Bronfenbrenner’s ecological theory of human development as the framework, this study explores how the ecological context of student teachers affect their belief development during the teaching practicum. Findings reveal that during the teaching practicum, student teachers interacted directly or indirectly with their ecological environments, including students, parents, mentors, supervisors, school policies, culture and social trends, which led them to develop, confirm, integrate, discard, or modify their beliefs. Findings also reveal that ecological environments may not only encourage but also impede student teachers’ belief development depending on what kind of influences they exert on them. Lastly, findings suggest that although macrosystem locates the most distant in student teachers’ ecological environments, factors within it may exert a huge influence on other environments and thus have a huge impact on student teachers. Based on the above findings, this study calls upon more opportunities for student teachers to participate in real-world professional practice so that they can put their beliefs to test. More training is also needed for mentors and supervisors to support student teachers’ belief development.
Shariah Attitude Towards Genetically Modified Foods: Aqli and Naqli Analysis
Authors: Mohd Safian Yasmin Hanani
Published: August 2019

Genetically modified (GM) food issue has sparked the debate, particularly in the Western world, on its detrimental effects to public health and the environment. Among the GM food producers and companies, the claim for intellectual property rights arise for food products and seeds for the technology they are licensing to farmers. For some Muslims and other God-conscious people, tampering with nature by implanting genes from one organism into another which nature has not sanctioned through natural processes and such legal claims is considered to be intolerable. The ‘terminator gene’ introduced by the companies are likely to lead to monopoly and encroachment of the world agro-economics, predominantly held in the hands of conglomerates. This study examines the Shariah attitudes towards GM food using aqli and naqli approach analysis. The aqli approach used in this paper includes analysis of modern scientific research to determine the benefits and harms of GM food. The naqli approach includes examination of related legal evidences from Quran, Hadith and scholars’ view. At the same time, the relevant Shariah principles are discussed to determine the validity of GM food.
Keberkesanan Gamifikasi Global Halal Game (GHG) dalam Pengajaran dan Pembelajaran (P&P) Serta Latihan kepada Eksekutif Halal
Authors: Ab Rahman Azman , Asman Muhammad Nasiruddin
Published: August 2019

The development of halal industry today requires awareness and understanding of the concept of halal and the certification of halal among Muslim societies in Malaysia including students and halal executives. Various methods are used in teaching and learning as well as training in the study of halal knowledge. One of the latest methods used is gamification. Therefore, the objective of this study is to measure the effectiveness of Global Halal Game (GHG) gamification in teaching and learning as well as training to Halal Executives. This quantitative study uses the method of survey form distributed to 43 respondents participating in the Professional Halal Training Programme – Certificate of Professional Halal Executive (PHEP) 2018 held in Islamic Science University of Malaysia (USIM). The findings of the study show that the effectiveness of GHG gamification in teaching and learning as well as training of Halal Executive is at a good level. Designers for gamification-specific innovation can use the result of the study as a benchmark in order to make improvements in the future production of innovation.
Effects of Out-of-plane Brace-to-chord Angle on Multiplane CHS X-joints Behavior Under Brace Compression
Authors: Zhao Bida , Li Ke , Liu Chengqing , Fang Dengjia , Wu Jianguo
Published: August 2019

Multiplanar CHS X-joints, different from the common uniplanar CHS X-joints, usually with a relative small out-of-plane brace-to-chord angle (OPBCA) for appealing architectural appearance in the single layered lattice structures. In order to study the effects of OPBCA on the static behavior of circular hollow section (CHS) X-joints under brace axial compression, experimental tests and numerical parametric study on the ultimate capacity and load transfer pattern of the CHS X-joints were carried out. The numerical analysis results had good consistent with experimental tests in terms of the capacity and fail mode of the X- joints. OPBCA changes the load transfer pattern to more load at the up saddle point from the same load at the up and bottom saddles in uniplanar X-joints, and more obvious for the X-joints with lager OPBCA. OPBCA is also unfavorable to the capacity, especially the X-joints with relative large brace-to-chord diameter ratio and in-plane brace-to-chord angle. Then an equation considering the OPBCA influence factor, extended the capacity prediction formulae of uniplanar X-joints in the current specifications to the multiplanar X-joints, is also established; and the equation has been validated favorably.
Communication Strategy of BKMT Riau Management in the Development of Islamic Da'wah
Authors: Arwan Arwan , Abdullah Abdullah , Kholil Syukur
Published: August 2019

In implementing a communication strategy, a communication plan must include goals, objectives and steps. Likewise, the communication planning of the BKMT Riau Management in the development of Islamic Da'wah in the form of program activities. This study is conducted by using descriptive qualitative approach. The result shows that communication management in the development of Islamic Da'wah of BKMT Riau Management can be traced from the activities program of Da'wah and Issuance of BKMT Riau management for the 2012-2017 period, including planning for organizing, implementing and evaluating. The communication methods used by BKMT are more dominant in informative communication, persuasive communication and educational communication as the most effective and most used method.
PENERAPAN MODEL PBM UNTUK MENINGKATKAN KINERJA DAN KEMAMPUAN BERPIKIR KRITIS SISWA SMA
Authors: Lestari Dini Dwi , Ansori Irwandi , Karyadi Bhakti
Published: August 2019

Penelitian ini bertujuan untuk meningkatkan aktivitas guru, kinerja, dan kemampuan berpikir kritis siswa pada materi Sistem Ekskresi di kelas XIIPA3 SMA Negeri 1 Kota Bengkulu dengan menerapkan model Pembelajaran  Berbasis Masalah. Penelitian ini merupakan penelitian tindakan kelas yang dilakukan dalam dua siklus. Masing-masing siklus terdiri dari 4 tahap yaitu : tahap perencanaan, pelaksanaan, pengamatan dan refleksi. Subjek penelitian ini adalah guru dan seluruh siswa kelas XIIPA3 SMA Negeri 1 Kota Bengkulu yang berjumlah 33 orang.  Metode yang digunakan adalah metode deskriptif. Teknik pengumpulan data aktivitas guru dan kinerja siswa adalah teknik observasi, menggunakan lembar observasi aktivitas guru dan lembar observasi penilaian kinerja. Adapun teknik yang digunakan untuk mengumpulkan data kemampuan berpikir kritis yaitu tes tertulis menggunakan lembar tes berpikir kritis. Hasil penelitian menunjukkan adanya peningkatan aktivitas guru, kinerja dan kemampuan berpikir kritis siswa. Rata-rata skor aktivitas guru pada siklus I yaitu 28 (baik) meningkat di siklus II menjadi 30 (baik). Kinerja siswa mengalami peningkatan yaitu pada siklus I 57,25% dengan kriteria cukup pada siklus II meningkat menjadi 72,5% dengan kriteria baik. Hasil kemampuan berpikir kritis pada siswa di siklus I memperoleh persentase klasikal 59,39% dengan kriteria cukup kritis, di siklus II meningkat menjadi 73,33% dengan kriteria kritis. Dapat disimpulkan bahwa penerapan model pembelajaran berbasis masalah dapat meningkatkan aktivitas guru, kinerja dan kemampuan berpikir kritis siswa pada materi sistem ekskresi di  kelas XIIPA3 SMA Negeri 1 Kota Bengkulu.Kata kunci: Pembelajaran Berbasis Masalah, Kinerja dan Kemampuan berpikir kritis, Biologi SMA
PENGEMBANGAN BUKU SAKU TUMBUHAN PAKU BERDASARKAN IDENTIFIKASI PTERIDOPHYTA DI SEKITAR DANAU DENDAM KOTA BENGKULU
Authors: Slavia Hanum , Kasrina Kasrina , Ansori Irwandi
Published: August 2019

Penelitian ini bertujuan untuk membuat buku saku tumbuhan paku berdasarkan hasil identifikasi keanekaragaman jenis tumbuhan paku di sekitar Danau Dendam Kota Bengkulu. Jenis penelitian adalah penelitian dan pengembangan (R&D) dengan tahapan (1) Identifikasi potensi dan masalah, (2) Pengumpulan informasi, (3) Desain produk, (4) Validasi produk, (5) Revisi desain, (6) Uji keterbacaan, dan (7) Revisi produk. Data penelitian dianalisis secara deskriptif. Berdasarkan hasil identifikasi diperoleh 8 spesies tumbuhan paku yang tergabung dalam tujuh genus, empat famili dan tiga ordo. Hasil keragaman tumbuhan paku yang diperoleh kemudian dijadikan bahan ajar berupa buku saku tumbuhan paku. Validasi uji kelayakan buku saku dilakukan oleh tiga dosen dan 1 orang guru Biologi. Hasil validasi menunjukkan buku saku termasuk dalam kategori “Sangat Baik” dengan persentase keidealan keseluruhan sebesar 88.25%. Hasil respon dari 20 siswa terhadap  buku saku termasuk dalam “Sangat Baik” dengan persentase keidealan keseluruhan yaitu 91.37%.Kata Kunci: Penelitian dan Pengembangan, Tumbuhan Paku, Buku Saku
PENERAPAN MODEL PROBLEM BASED LEARNING UNTUK MENINGKATKAN KEMAMPUAN MEMECAHKAN MASALAH PADA SISWA SMP
Authors: Asrati Sirtika , Karyadi Bhakti , Ansori Irwandi
Published: August 2019

Penelitian ini bertujuan untuk mendeskripsikan penerapan model Problem Based Learning yang dilakukan guru dan kemampuan memecahkan masalah siswa kelas VII.c SMPN 9 Kota Bengkulu. Jenis penelitian ini adalah penelitian tindakan kelas dengan metode deskriptif. Penelitian ini terdiri dari dua siklus, setiap siklus terdiri dari 4 tahap yaitu tahap perencanaan, pelaksanaan, pengamatan dan refleksi. Subyek penelitian ini adalah guru dan seluruh siswa kelas VII.C SMPN 9 Kota Bengkulu. Variabel penelitian ini adalah model Problem Based Learning dan Kemampuan Memecahkan masalah siswa. Teknik pengumpulan data dalam penelitian ini yaitu observasi dan tes. Instrument penelitian yang digunakan adalah lembar observasi dan lembar tes. Hasil analisis data aktivitas guru siklus I diperoleh skor rata-rata yaitu 26 (Baik), dan pada siklus II skor aktivitas guru menjadi 30 (Baik). Hasil analisis data aktivitas siswa pada siklus I diperoleh skor rata-rata 26 (Baik), pada siklus II skor aktivitas siswa menjadi 30 (Baik). Data hasil kemampuan siswa memecahkan masalah pada siklus I dianalisis berdasarkan kategori ketuntasan belajar klasikal dan diperoleh persentase ketuntasan belajar klasikal yaitu 48% yang termasuk dalam kategori belum tuntas dan pada siklus II kemampuan siswa memecahkan masalah mengalami peningkatan dengan ketuntasan belajar klasikal yaitu 87% dan termasuk dalam kategori tuntas. Dari hasil penelitian dapat disimpulkan bahwa model Problem Based Learning dapat meningkatkan kemampuan siswa memecahkan masalah.Kata Kunci : Problem Based Learning, Kemampuan memecahkan masalah, Pengelolaan lingkungan.
PENINGKATAN SIKAP ILMIAH DAN HASIL BELAJAR SISWA DENGAN MODEL PROBLEM BASED LEARNING
Authors: Aprilianti Luthfy , Irawati Sri , Kasrina Kasrina
Published: August 2019

Penelitian ini bertujuan untuk mendeskripsikan aktivitas guru serta meningkatkan sikap ilmiah dan hasil belajar dengan menerapkan model problem based learning pada materi sistem pencemaran lingkungan di kelas VIIB SMPN 11 Kota Bengkulu. Jenis penelitian adalah penelitian tindakan kelas yang dilakukan dalam dua siklus. Setiap siklus terdiri atas empat tahap yaitu perencanaan, pelaksanaan, observasi dan refleksi. Subjek penelitian ini adalah guru dan siswa kelas VIIB SMPN 11 Kota Bengkulu tahun ajaran 2016/2017. Variabel penelitian ini adalah model problem based learning, sikap ilmiah, dan hasil belajar. Instrumen penelitian berupa lembar observasi untuk mengetahui aktivitas guru dan sikap ilmiah, sedangkan lembar tes digunakan untuk mengetahui hasil belajar. Hasil analisis data observasi aktivitas guru siklus I diperoleh skor rata-rata 24 (baik), dan di siklus II 28 (baik). Hasil analisis data observasi sikap ilmiah siswa siklus I diperoleh skor rata-rata 17,71 (cukup), siklus II menjadi 20,74 (baik). Pada hasil belajar kompetensi pengetahuan siklus I mendapatkan persentase 66,66%, siklus II menjadi 84,85%, pada hasil belajar kompetensi sikap siklus I mendapatkan persentase 69,69%, siklus II menjadi 100%, pada hasil belajar kompetensi keterampilan siklus I mendapatkan persentase 81,81%, siklus II menjadi 100%. Disimpulkan bahwa model problem based learning dapat meningkatkan sikap ilmiah dan hasil belajar siswa kelas VIIB SMPN 11Kota Bengkulu.Kata kunci: Problem Based Learning, Sikap Ilmiah
SISTEM PENDUKUNG KEPUTUSAN PEMBAYARAN BEASISWA DENGAN MENGGUNAKAN METODE WEIGHTED PRODUCT (WP)
Authors: Sipayung Evasaria M , Yonata Yosi , Rende Chrevita J
Published: August 2019

Anak Pelangi Indonesia (API) Foundation is a non-profit foundation that offers scholarship programs for elementary, middle and high school students. This institute is supported by donaturs who give contribution to the Foundation. The donation is processed to be a cost that is used to pay Sumbangan Pembinaan Pendidikan (SPP) or Education Development Donation of each student. Currently, the provision of monthly donor fund is at uncertain amount so that the Foundation needs to determine the students of whom SPP will be firstly paid. However, the funding needs of each student are different due to the different amount of SPP and a giving fine from the school for the tardiness in paying the tuition. From these matters, the Foundation finds it difficult in deciding which students whose the tuition will be paid first. The solution to this problem is to use the four criteria referring to the tuition payment, namely the difference of pay date, fine, rank, and the amount of payment. The four criteria is then given the same integrity which is 25% for each criteria and counted by using Weighted Product (WP) method. The result of this research is an information system to the selection of scholarship payment using Weight Product method that takes the biggest value from the calculation result as a reference in deciding which students of whom SPP will be initially paid in accordance with the current fund condition.
Plethysmographic and Biochemical Markers in the Diagnosis of Endothelial Dysfunction in Pediatric Acute Lymphoblastic Leukemia Survivors – New Applications
Authors: MASOPUSTOVÁ A. , JEHLIČKA P. , HUML M. , VOTAVA T. , TREFIL L. , KRESLOVÁ M. , SÝKORA J.
Published: August 2019

Acute lymphoblastic leukemia (ALL) and its treatment are associated with endothelial dysfunction (ED) and increased cardiovascular risk in adulthood. There are no data on ED in children after successful treatment of ALL. We aimed to assess new ED in these children using the plethysmographic reactive hyperemia index (RHI) and biomarkers that are known to be related to ED. In all, 22 children (mean 15.6 years), after successful treatment of ALL, and 18 healthy subjects were included in this prospective study. RHI, plasma concentrations of asymmetric dimethyl arginine (ADMA), high-sensitive CRP (hsCRP) and E-selectin were measured in all children. RHI values were significantly lower in ALL patients when compared with healthy controls (p<0.05). hsCRP was significantly increased in ALL patients compared with the control group (p<0.001). E-selectin plasma levels were higher in ALL patients as compared to healthy controls (p=0.05). This is the first study that combines both plethysmographic and biochemical methods to assess ED in ALL survivors. Significantly decreased RHI with elevated plasma concentrations of biochemical markers imply a possible association with premature ED in ALL patients. The combined diagnostic approach seems to be a valuable tool for more accurate detection of ED and preventive cardiovascular management in these patients.
Serum HMGB1 Levels and Its Association With Endothelial Dysfunction in Patients With Polycystic Ovary Syndrome
Authors: WANG H. , LIN M. , XIANG G.
Published: August 2019

High-mobility group box 1 (HMGB1) is newly discovered protein, which play a crucial role in the pathogenesis of systemic inflammation. Recent studies showed that HMGB1 is one of the important pathophysiological mechanisms in the occurrence and development of atherosclerosis. The purpose of the present study was to investigate the relationship between serum HMGB1 levels and endothelial function in patients with polycystic ovary syndrome (PCOS). Eighty newly diagnosed patients with PCOS and eighty normal women of similar age were selected. Metformin treatment (1,500 mg/day) was initiated in all patients for a period of consecutive 3 months. Serum HMGB1 levels were measured by ELISA. High resolution ultrasound was used to measure the brachial artery diameter at rest, after reactive hyperemia (flow-mediated arterial dilation, FMD) and after sublingual glyceryltrinitrate. Serum HMGB1 levels in PCOS were 24.87±14.93 ng/ml, which were significantly higher than that in controls (8.82±3.55 ng/ml, p<0.01). After 3 months treatment, serum HMGB1 levels decreased significantly (p<0.05). By dividing the distribution of HMGB1 levels into quartiles, serum HMGB1 levels were increased gradually with the increase of testosterone levels (p<0.05), whereas the FMD levels decreased (p<0.05). Multiple stepwise linear regression analysis showed that FMD (estimated coefficient β=-0.69, p=0.005), testosterone (β=0.31, p=0.045), TBARS (β=0.69, p=0.012) and hs-CRP levels (β=0.68, p=0.001) were significantly associated with HMGB1. The absolute changes in HMGB1 showed a positive correlation with the changes in testosterone (p<0.05) and negative correlation with the changes in FMD (p<0.05) in patients with PCOS during the course of metformin therapy. Serum HMGB1 levels are correlated with endothelial dysfunction in patients with PCOS. Our study suggests that HMGB1 may contribute to the early stage of atherosclerosis in patients with PCOS
Acute Toxic Effects of Telmisartan in Spontaneously Hypertensive Rats Fed a High Fructose Diet
Authors: ŠILHAVÝ J. , MLEJNEK P. , ŠIMÁKOVÁ M. , VANĚČKOVÁ I. , BEHULIAK M. , KUDA O. , STICOVÁ E. , JIRSA M. , PRAVENEC M.
Published: August 2019

Telmisartan is an angiotensin receptor blocker (ARB) and a selective peroxisome proliferator activated receptor gamma (PPARG) modulator. Recently, we tested metabolic effects of telmisartan (5 mg/kg body weight) in spontaneously hypertensive rats (SHR) fed a diet containing 60 % fructose, a widely used model of the metabolic syndrome. Surprisingly, we observed acute toxic effects of telmisartan. Rats lost body weight rapidly and died within 2 to 3 weeks due to bleeding into the upper gastrointestinal tract. SHR fed a high fructose diet and treated with telmisartan exhibited rapid decrease in blood pressure when compared to the SHR fed a high fructose diet and treated with valsartan. Concentrations of both unconjugated telmisartan and telmisartan glucuronide in the liver of SHR rats fed a high fructose diet were approximately 4 fold higher when compared to Brown Norway (BN) rats fed the same diet. Plasma concentrations of unconjugated telmisartan in the SHR were about 5 fold higher when compared to BN rats while plasma levels of telmisartan glucuronide were similar between the strains. Testing of other rat strains, diets, and the ARB valsartan showed that toxic effects of telmisartan in combination with high fructose diet are specific for the SHR. These results are consistent with the possibility that in some circumstances, SHR are predisposed to telmisartan toxicity possibly because of a genetically determined disturbance in telmisartan metabolism.
Analisis Pengaruh Price To Book Value, Current Ratio, Tingkat Suku Bunga dan Ukuran Perusahaan Terhadap Return Saham Pada Perusahaan yang Terdaftar di Indeks Kompas 100 Periode 2012-2016
Authors: Nisa Aulia , Khairunnisa Khairunnisa
Published: August 2019

Return saham merupakan keuntungan yang diterima investor atas investasi saham. Return saham Indeks Kompas 100 pada tahun 2012-2016 mengalami fluktuatif, sehingga hal tersebut menyebabkan adanya ketidakpastian yang akan didapatkan oleh investor ketika melalukan investasi saham di suatu perusahaan. Penelitian ini bertujuan untuk mengetahui dan menganalisa pengaruh price to book value, current ratio, tingkat suku bunga dan ukuran perusahaan terhadap return saham pada perusahaan yang terdaftar dalam Indeks Kompas 100 pada 2012-2016. Metode analisis yang digunakan dalam penelitian adalah regresi data panel. Hasil penelitian ini menunjukkan bahwa variabel tingkat suku bunga secara parsial memiliki pengaruh yang signifikan terhadap return saham. Variabel price to book value, current ratio, dan ukuran perusahaan secara parsial tidak memiliki pengaruh signifikan terhadap return saham. Secara simultan, variabel price to book value, current ratio, tingkat suku bunga dan ukuran perusahaan memiliki pengaruh yang signifikan terhadap return saham.
Pengaruh Inflasi, Suku Bunga Bank Indonesia, Debt to Equity Ratio, Ukuran Perusahaan dan Umur Perusahaan terhadap profitabilitas Perusahaan Sub Sektor Pertambanagan Batubara yang Terdaftar di BEI Tahun 2013-2017
Authors: Zuchrinata Fitri Amanda , Yunita Irni
Published: August 2019

Pada tahun 2013-2017, profitabilitas perusahaan sektor pertambangan mengalami penurunan yang signifikan. Penurunan paling signifikan terjadi pada sub-sektor pertambangan batu bara. Penurunan profitabilitas dipengaruhi oleh faktor internal (Debt to Equity Ratio, ukuran perusahaan dan umur perusahaan) dan faktor eksternal perusahaan (inflasi dan suku bunga Bank Indonesia). Tujuan dari penelitian ini adalah untuk menguji kelima faktor tersebut terhadap profitabilitas perusahaan. Objek yang digunakan pada penelitian ini adalah perusahaan sub sektor pertambangan batu bara yang terdaftar di BEI pada periode penelitian tahun 2013-2017. Penelitian ini dikategorikan ke dalam jenis penelitian deskriptif kausal dengan menggunakan metode kuantitatif. Metode yang digunakan untuk menganalisa data adalah metode regresi data panel dan menggunakan Uji-t dan Uji-F untuk melakukan pengujian hipotesis. Hasil penelitian ini menunjukkan bahwa inflasi, suku bunga Bank Indonesia, Debt to Equity Ratio, ukuran perusahaan, dan umur perusahaan secara simultan berpengaruh signifikan terhadap profitabilitas perusahaan. Secara parsial, Debt to Equity Ratio berpengaruh secara negatif dan signifikan, sementara inflasi, suku bunga Bank Indonesia, ukuran perusahaan, dan umur perusahaan tidak berpengaruh secara signifikan terhadap profitabilitas.
PENGARUH DEVIDEND PER SHARE (DPS), EARNING PER SHARE (EPS) DAN NET PROFIT MARGIN (NPM) TERHADAP HARGA SAHAM PADA PERUSAHAAN PERSERO YANG TERDAFTAR DI BURSA EFEK INDONESIA (BEI) PERIODE 2013-2017
Authors: Br Parhusip Novalia Selvi , Udjang Raswan
Published: August 2019

This study aims to analyse the effects of Dividend Per Share, Earning Per Share and Net Profit Margin simultaneously and partially on stock price. This study was taken because there are still differences between the research study with each other. The method of purposive sampling was used in this sample of research. The sample of the research from twenty companies, only eleven are selected because the financial statement from each company are complete since 2013-2017.  The analysis method used is multiple linear regression analysis. By using regression analysis, this study provides evidence that Devidend per Share have significant positive effect on stock prices. Earning per Share have significant positive effect on stock prices. Net Profit Margin have significant negative effect on stock prices.
Diversity, Distribution and Phylogeny of Hesionidae (Annelida) Colonizing Whale Falls: New Species of Sirsoe and Connections Between Ocean Basins
Authors: Shimabukuro Mauricio , Carrerette Orlemir , Alfaro-Lucas Joan Manel , Rizzo Alexandra Elaine , Halanych Kenneth M. , Sumida Paulo Yukio Gomes
Published: August 2019

Whale falls are important environments contributing to biodiversity, connectivity and evolutionary novelty in deep-sea ecosystem. Notwithstanding, most of this knowledge is based in studies from NE Pacific basin. Interestingly, the only known natural whale fall on the SW Atlantic has faunal composition affinities with carcasses from other deep-ocean basins. In this carcass, annelid worms belonging to Hesionidae are abundant and species-rich, and include some shared species with NE Pacific Ocean. Here we evaluate the diversity of Hesionidae on the SW Atlantic using new information of implanted whale bones and explore whether some species have interbasin distribution or if they represent cryptic species in different basins. We described, using morphological and molecular data, a total of 10 new hesionid species and report of a new lineage Sirsoe ‘BioSuOr,’ not formally described herein. Two hesionids found exclusively in deep-sea chemosynthetic environments, SirsoePleijel (1998) and VrijenhoekiaPleijel et al. (2008), are primarily distinguished from each other by the presence of a median antenna on the former and its absence on the latter. However, our analyses showed that Vrijenhoekia should be synonymized with Sirsoe and for this reason we emended the diagnosis of Sirsoe. We also emphasized the presence of Sirsoe balaenophila comb. nov. and S. sirikos in SW Atlantic whale falls confirming their interbasin distribution. Moreover, COI and 16S rDNA data reveal that S. balaenophila comb. nov. also comprises cryptic species on the SW Atlantic (S. pirapuan sp. nov. and S. ypupiara sp. nov) and perhaps also in the Pacific Ocean (herein named as S. balaenophila lineage-2). The new species, S. maximiano, is shared between whale falls from SW Atlantic and vent sites from Mid-Cayman Spreading Center. Our data adds to the growing literature showing species are shared between deep ocean basins and among cognate deep-sea environments. Zoobank registration publication LSID - urn:lsid:zoobank.org:pub:7E891B1D-DCE4-45C8-83F4-8586D286B327.
Carnosol, a Natural Polyphenol, Inhibits Migration, Metastasis, and Tumor Growth of Breast Cancer via a ROS-Dependent Proteasome Degradation of STAT3
Authors: Alsamri Halima , El Hasasna Hussain , Al Dhaheri Yusra , Eid Ali H. , Attoub Samir , Iratni Rabah
Published: August 2019

We have previously demonstrated that carnosol, a naturally occurring diterpene, inhibited in vitro cell viability and colony growth, as well as induced cell cycle arrest, autophagy and apoptosis in human triple negative breast cancer (TNBC) cells. In the present study, we evaluated the ability of carnosol to inhibit tumor growth and metastasis in vivo. We found that non-cytotoxic concentrations of carnosol inhibited the migration and invasion of MDA-MB-231 cells in wound healing and matrigel invasion assays. Furthermore, gelatin zymography, ELISA, and RT-PCR assays revealed that carnosol inhibited the activity and downregulation the expression of MMP-9. Mechanistically, we demonstrated that carnosol suppressed the activation of STAT3 signaling pathway through a ROS-dependent targeting of STAT3 to proteasome-degradation in breast cancer cells (MDA-MB-231, Hs578T, MCF-7, and T47D). We show that blockade of proteasome activity, by MG-132 and bortezomib, or ROS accumulation, by N-acetylcysteine (NAC), restored the level of STAT3 protein. In addition, using chick embryo tumor growth assay, we showed that carnosol significantly and markedly suppressed tumor growth and metastasis of breast cancer xenografts. To the best of our knowledge, this is the first report which shows that carnosol specifically targets signal transducer and activator of transcription 3 (STAT3) for proteasome degradation in breast cancer. Our study further provide evidence that carnosol may represent a promising therapeutic candidate that canmodulate breast cancer growth and metastasis.
Polyphenol Extraction from Humulus lupulus (Hop) Using a Neoteric Glycerol/L-Alanine Deep Eutectic Solvent: Optimisation, Kinetics and the Effect of Ultrasound-Assisted Pretreatment
Authors: Lakka Achillia , Karageorgou Ioanna , Kaltsa Olga , Batra Georgia , Bozinou Eleni , Lalas Stavros , Makris Dimitris
Published: August 2019

The investigation presented herein had as its scope the development of an integrated process for the efficient extraction of polyphenols from hop. For this purpose, a novel, natural deep eutectic solvent (DES) was synthesised, composed of glycerol and L-alanine, and the process was optimised by deploying a response surface methodology based on a Box–Behnken design. The variables considered were the DES/water proportion, the liquid-to-solid ratio and the stirring speed. Under the optimised conditions, the yield in total polyphenols achieved was 118.97 ± 8.27 mg gallic acid equivalents per g of dry mass. Ultrasonication, incorporated into the process as a pretreatment step, was shown to significantly change the kinetic pattern of polyphenol extraction and contributed to attaining higher yields only at 80 °C, whereas at lower temperatures a supressing effect was observed. Furthermore, increasing temperature was negatively correlated with the second-order extraction rates, evidencing a slow-down of the extraction rate at elevated temperatures.
The Clogging Rules of Ceramic Emitter in Irrigation Using Saline Water with Different EC
Authors: Chen Huifang , Liu Yanfang , Chen Junying , Zhang Lin , Cai Yaohui , Chen Haiying , Wu Shoujun , Zhou Mingu
Published: August 2019

Infiltration irrigation with saline water is a more effective method than drip irrigation to alleviate water scarcity worldwide, but so far, no report has discussed the clogging rules of ceramic emitters, a major component of infiltration irrigation system. To explore the clogging mechanism of ceramic emitter in saline water infiltration irrigation system, we used four kinds of saline water sources with electrical conductivity (EC) of 0.18, 1.74, 3.78, and 7.74 ds/m, respectively. In addition, we specifically investigated the law of discharge ratio variation (Dra) of ceramic emitters, as well as the composition and growth process of clogging substance. The results indicated that the Dra of ceramic emitters decreased in the process of saline water irrigation, and the higher the EC, the more obvious the decrease. The calcium carbonate (CaCO3) was the main component of the clogging substance in the inner wall of ceramic emitters. The clogging part was a layer on the inner wall of the emitters rather than the pores in the walls, and the clogging did not occur suddenly. Instead, it was caused by the long–term accumulation of the clogging substance. Moreover, with the increase of EC, the flocculation between the clogging particles in the water was enhanced and thus promoted the formation of stable and compact aggregates, which fundamentally led to the clogging acceleration of ceramic emitters. This clogging mechanism of ceramic emitters can provide some theoretical reference for the establishment of anti-clogging strategy.
Whole-Systems Analysis of Environmental and Economic Sustainability in Arable Cropping Systems: A Case Study
Authors: Hawes Cathy , Young Mark W. , Banks Gillian , Begg Graham S. , Christie Andrew , Iannetta Pietro P. M. , Karley Alison J. , Squire Geoffrey R.
Published: August 2019

The long-term sustainability of crop production depends on the complex network of interactions and trade-offs between biotic, abiotic and economic components of agroecosystems. An integrated arable management system was designed to maintain yields, whilst enhancing biodiversity and minimising environmental impact. Management interventions included conservation tillage and organic matter incorporation for soil biophysical health, reduced crop protection inputs and integrated pest management strategies for enhanced biodiversity and ecosystem functions, and intercropping, cover cropping and under-sowing to achieve more sustainable nutrient management. This system was compared directly with standard commercial practice in a split-field experimental design over a six-year crop rotation. The effect of the cropping treatment was assessed according to the responses of a suite of indicators, which were used to parameterise a qualitative multi-attribute model. Scenarios were run to test whether the integrated cropping system achieved greater levels of overall sustainability relative to standard commercial practice. Overall sustainability was rated high for both integrated and conventional management of bean, barley and wheat crops. Winter oilseed crops scored medium for both cropping systems and potatoes scored very low under standard management but achieved a medium level of sustainability with integrated management. In general, high scores for environmental sustainability in integrated cropping systems were offset by low scores for economic sustainability relative to standard commercial practice. This case study demonstrates the value of a ‘whole cropping systems’ approach using qualitative multi-attribute modelling for the assessment of existing cropping systems and for predicting the likely impact of new management interventions on arable sustainability.