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Characteristics of Rainfall-Discharge and Water Quality at Limboto Lake, Gorontalo, Indonesia Subehi, Luki; Wibowo, Hendro; Jung, Kwansue
Journal of Engineering and Technological Sciences Vol 48, No 3 (2016)
Publisher : ITB Journal Publisher, LPPM ITB

Problems of high turbidity, sedimentation, water pollution and siltation occur at Limboto Lake, Gorontalo, Indonesia. The objective of this study was to analyze the rainfall-discharge relationship and its implications for water quality conditions. Secchi disk (water transparency), chlorophyll-a (chl-a), and total organic matter (TOM) were measured in May 2012, September 2012 and March 2013 at three sites of the lake (L-1, L-2 and L-3) to observe the impacts on the surrounding catchment. Based on representative stations for rainfall data from 2004 to 2013, monthly averages of rainfall in March-May (166.7 mm) and September (76.4 mm) were used to represent the wet and dry period, respectively. Moreover, sediment traps at these three sites were installed in September 2012. Based on the analysis it is suggested that rainfall magnitude and land use change at the Alopohu River catchment influenced the amount of materials flowing into the lake, degrading the water quality. Specifically, the higher average rainfall in May (184.5 mm) gave a higher average total sediment load (4.41 g/L/day). In addition, water transparency decreased with increasing chl-a. This indicates that the concentrations of sediment and nutrients, reflected by the high amount of chl-a, influenced the water quality conditions.

Modul Belajar Elektronik pada Materi Ajar Merakit Personal Computer Putra, Ranggri Pratama R; Supraptono, Eko; Wibowo, Hendro
Edu Komputika Journal Vol 3 No 1 (2016): Edu Komputika Journal
Publisher : Jurusan Teknik Elektro Universitas Negeri Semarang

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The purpose of this study was to develop an electronic learning modules that can be used to support learning assemble a personal computer (PC) as well as implement the electronic learning modules in order to increase interest and student learning outcomes. The method used in the study is the Research and Development (R & D) research design one-group pretest-posttest. The steps in the research include analysis of the potential and problems, data collection, product design, design validation to the expert media and materials, design revision, the revision of the product as well as product testing to students of class X TKJ SMK Islam Sudirman II Ambarawa. Media developed feasible for use as a learning support assemble a personal computer (PC) based on the results of the validation. The results of hypothesis testing using t-test showed that the value t table = 2.045 <t = 4.67 which means Ha accepted and the average yield learn to assemble personal computer (PC) using an electronic learning module is greater than 80. By testing n- the gain obtained by the gain of 0.44, or 44%, which is within the range of 0.3 <g <0.7 were categorized as moderate, it can be said has increased significantly. Results of student questionnaire responses to aspects of feeling happy, student interest, attention, and aspects of the involvement of students showed a very positive response.

KARAKTERISTIK DANAU ASAL VULKANIK STUDI KASUS: DANAU TOLIRE, PULAU TERNATE Setiawan, Fajar; Wibowo, Hendro; Budi Santoso, Arianto; Nomosatryo, Sulung; Yuniarti, Ivana
LIMNOTEK - Perairan Darat Tropis di Indonesia Vol 21, No 2 (2014)
Publisher : Research Center for Limnology

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Ternate merupakan sebuah pulau vulkanik di Maluku Utara, didalamnya terdapat gunung api aktif (G. Gamalama) berketinggian 1.715 m dpl. Di pulau ini terdapat tiga danau (Tolire Besar, Ngade dan Tolire Kecil) yang berdasarkan proses terbentuknya digolongkan sebagai danau vulkanik dengan type Maar. Pengukuran yang dilakukan di Danau Tolire Besar pada tahun 2011 menghasilkan informasi kondisi fisik danau dan daerah tangkapannya. Danau Tolire dikelilingi oleh tebing curam setinggi 60-80 m, tidak mempunyai outlet dan inlet hanya berupa alur air dari puncak Gunung. Luas DTA danau adalah 244,2 Ha dengan tanah ber-ordo Inceptisols dan Ultisols, dengan Iklim termasuk tipe iklim B (Basah). Kedalaman maksimum danau 43,1 m, diameter 600 m, luas badan air 26,5 Ha, kecerahan danau hanya 4 m, salinitas, DO serta profil pH dan ORP mempunyai pola yang hampir sama, yang mengindikasikan bahwa pada kedalaman antara 8 dan 9 m adalah lapisan chemocline atau oxycline. Lapisan permukaan cenderung bersifat oksidatif dan lapisan dasar reduktif. Tidak dijumpai adanya stratifikasi lapisan danau oleh perbedaan suhu, dengan suhu permukaan 30°C. Daya dukung danau terhadap biota ikan sangat rendah, karena faktor tingginya kandungan sulfida dan lingkungan yang terisolir.

STUDI KELOMPOK NELAYAN TRADISIONAL PADA WILAYAH PESISIR DI KECAMATAN BULELENG Wibowo, Hendro; treman, i wayan; sutarjo, sutarjo
Jurnal Pendidikan Geografi Undiksha Vol 2, No 2 (2014): Jurnal Pendidikan Geografi Undiksha
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jjpg.v2i2.20404

Penelitian ini dilakukan di Kecamatan Buleleng dengan tujuan, 1) Untuk mendeskripsikan persebaran kelompok nelayan tradisional di Kecamatan Buleleng. 2) Untuk mengetahui kondisi organisasi kelompok nelayan tradisional di Kecamatan Buleleng. 3) Untuk mengetahui kondisi sosial ekonomi kelompok nelayan tradisional di Kecamatan Buleleng. Populasi penelitian ini sebanyak 544 orang nelayan yang tersebar di masing-masing desa yang ada di Kecamatan Buleleng. Teknik pengambilan sampel dilakukan dengan teknik purposive sampling yang artinya pengambilan sampel dengan pertimbangan tertentu sesuai dengan tujuan penelitian. Berkenaan dengan itu maka dilakukan penelitian sampel dengan menggunakan 51 responden dari 12 desa yang menjadi pedoman dalam penelitian ini. Pengumpulan data primer menggunakan metode observasi dan kuesioner, pengumpulan data sekunder menggunakan pencatatan dokumen. Teknik analisis data yang dipakai dalam penelitian ini adalah analisis deskriptif kualitatif. Hasil penelitian menunjukkan bahwa 1) Pola persebaran kelompok nelayan pada wilayah pesisir di Kecamatan Buleleng mengikuti garis pantai atau memanjang (Linier), ini disebabkan oleh aktifitas kelompok nelayan tradisional yang ada pada wilayah pesisir. 2) Kondisi organisasi kelompok nelayan tradisional terbilang cukup baik dan lengkap. Hal ini disebabkan karena dalam mendirikan kelompok nelayan harus memiliki susunan pengurus yang didaftarkan ke Dinas Perikanan dan Kelautan. 3) Kondisi sosial ekonomi kelompok nelayan tradisional terbilang masih rendah, mulai dari jenjang pendidikan yang rata-rata hanya hingga tingkat SD sampai pada pendapatan para nelayan yang rata-rata Rp 447.000,- menyebabkan beberapa nelayan di Kecamatan Buleleng mencari pekerjaan sampingan untuk memenuhi kebutuhan hidupnya.

Modul Belajar Elektronik pada Materi Ajar Merakit Personal Computer Putra, Ranggri Pratama R; Supraptono, Eko; Wibowo, Hendro
Edu Komputika Journal Vol 3 No 1 (2016): Edu Komputika Journal
Publisher : Jurusan Teknik Elektro Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/edukomputika.v3i1.20501

The purpose of this study was to develop an electronic learning modules that can be used to support learning assemble a personal computer (PC) as well as implement the electronic learning modules in order to increase interest and student learning outcomes. The method used in the study is the Research and Development (R & D) research design one-group pretest-posttest. The steps in the research include analysis of the potential and problems, data collection, product design, design validation to the expert media and materials, design revision, the revision of the product as well as product testing to students of class X TKJ SMK Islam Sudirman II Ambarawa. Media developed feasible for use as a learning support assemble a personal computer (PC) based on the results of the validation. The results of hypothesis testing using t-test showed that the value t table = 2.045 <t = 4.67 which means Ha accepted and the average yield learn to assemble personal computer (PC) using an electronic learning module is greater than 80. By testing n- the gain obtained by the gain of 0.44, or 44%, which is within the range of 0.3 <g <0.7 were categorized as moderate, it can be said has increased significantly. Results of student questionnaire responses to aspects of feeling happy, student interest, attention, and aspects of the involvement of students showed a very positive response.

PENGEMBANGAN EKONOMI KREATIF DESA MELALUI BADA USAHA MILIK DESA (BUMDES) MENUJU KOPERASI BERBASIS IT Wibowo, Hendro
An Nawawi Vol 1 No 1 (2021): An Nawawi
Publisher : Sekolah Tinggi Ilmu Fikih Syeikh Nawawi Tanara Serang

The allocation of Village Funds (Dana Desa) from year to year increased, the Central Government has allocated Village Funds in 2015 amounting to Rp 20 trillion and in 2016 increased to Rp 47 trillion and in 2017 increased to Rp 60 trillion. For the province of Banten in 2015 has received village funds amounting to Rp 200 billion, in 2016 increased to Rp 791 billion and in 2017 to Rp 1 trillion. With the Village Fund is required accountability of village financial management in terms of planning, implementation, administration, reporting, accountability, guidance and supervision of village finances and to know the accountability of village financial management. The future goal of the allocation of Village Funds from the Central Government in order to form a Village Owned Enterprise (Badan Usaha Milik Desa). This study aims to develop the allocation of Village Funds can be allocated in the manufacture of Village Owned Enterprises with legal status of Koperasi by developing the potential of existing Village Economics based on Technology using Financial System Technologi and Market Place. Keywords: Alokasi Dana Desa (ADD), BUMDes, Fintech dan Market Place

Identification of Tax Allowance Policies and Mechanisms in Indonesia Marlina, Reni; Bahri, Efri Syamsul; Wibowo, Hendro; Wiharjo, Suyadi Murdi
ITQAN: Journal of Islamic Economics, Management, and Finance Vol. 2 No. 1 (2023): ITQAN: Journal of Islamic Economics, Management, and Finance
Publisher : Yayasan Mitra Peduli Indonesia

The government issued a tax allowance policy to increase the amount of investment in Indonesia. This policy is given to Foreign Investors (PMA) and Domestic Investors (PMDN). This research aims to identify the policy and implementation mechanism of tax allowance in Indonesia. This research uses a qualitative method with a descriptive approach. First, the study found that the tax allowance policy is contained in article 31A, paragraph 21 of Law Number 7 of 1983 on Income Tax. Then, in Law Number 36 of 2008 on the Fourth Amendment to Law Number 7 of 1983 on Income Tax and Government Regulation Number 78 of 2019 on Income Tax Facilities for Capital Investment in Certain Fields of Business and/Or in Districts -Specific Areas. Furthermore, the tax allowance mechanism is regulated in the Regulation of the Minister of Finance of the Republic of Indonesia Number 11/PMK.010/2020 Regarding the Implementation of Government Regulation Number 78 of 2019 Regarding Income Tax Facilities for Capital Investment in Certain Fields of Business and/or in Certain Districts.

Measuring the Effectiveness of Zakat Distribution at the National Board of Zakat of Bandung City Bahri, Efri Syamsul; Aslam, Mohd Mizan Mohammad; Wibowo, Hendro; Mubarok, Abdullah
ITQAN: Journal of Islamic Economics, Management, and Finance Vol. 2 No. 2 (2023): ITQAN: Journal of Islamic Economics, Management, and Finance
Publisher : Yayasan Mitra Peduli Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57053/itqan.v2i2.23

Zakat, collected by the National Board of Zakat (Baznas) of Bandung City, has practical value for the community's welfare. This study aims to measure the effectiveness of Zakat distribution in Baznas Bandung City. This research was conducted using quantitative methods. Data sourced from the Baznas Bandung City Financial Report for the 2017-2021 period. Distribution effectiveness measurement uses the allocation-to-collection ratio (ACR) approach. In addition, this study uses a descriptive approach. The results showed that the ACR value was 94 per cent. Thus, the level of effectiveness in the distribution of Baznas Bandung City is in the Highly Effective category. Therefore, Baznas Bandung City needs to optimize the distribution of Mustahiq Zakat, which covers five program areas: Education, Economy, Health, Da'wah, and Humanity.

GROUNDING ISLAMIC COMMUNICATION IN THE KORAN Wibowo, Hendro
Proceeding International Seminar of Islamic Studies INSIS 5 (March 2023)
Publisher : Proceeding International Seminar of Islamic Studies

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The family in the Qur'an is defined as a collection of men and women who are bound by marriage and in which there are people who are their dependents, such as children and in-laws. The family has a very strategic role and a very useful function. These roles are as a protector, educator of family members, liaison in the community, meeting their economic needs, fostering religious life, organizing family recreation and creating a safe and comfortable atmosphere for all family members and especially for husband and wife, as a place to meet their biological needs. . In Islam, the Qur'an has generally explained about communication within the family. This communication can be divided into three parts, namely communication between husband and wife, and communication between parents and children, as well as communication between siblings. If these three communications work effectively, then family integrity, harmony and happiness will be achieved

The Sharia Economic Ecosystem in Indonesia: Preliminary Study Wibowo, Hendro
International Journal of Strategic Studies Vol. 2 No. 1 (2025): International Journal of Strategic Studies
Publisher : Indo Consultan Energi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59921/icestra.v2i1.77

The Sharia economy has experienced rapid growth in Indonesia, accompanied by increasing public awareness of Islamic financial principles and government regulatory support. This is supported by the Sharia economic ecosystem, which covers the real sector based on Sharia principles. This study analyzes the structure, development, and challenges of building Indonesia's sustainable Sharia economic ecosystem. This research employs a qualitative method, incorporating a literature review approach based on relevant sources. The results of the study indicate that the Sharia economic ecosystem in Indonesia comprises four main pillars: the Halal Product Industry, the Sharia Financial Sector, Sharia Social Funds (including Zakat, Infaq, Shodaqoh, and Waqf), and Sharia Business and Entrepreneurship. Through the National Committee for Sharia Economics and Finance (KNEKS), the government has played a crucial role in developing a roadmap and promoting cross-sector collaboration. The implications of this study underscore the importance of strengthening regulations, enhancing public literacy, and fostering strategic collaboration among Sharia financial institutions, the halal industry, and ZISWAF institutions to create an inclusive and globally competitive ecosystem.

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