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METODE HYBRID MAXIMUM TSALLIS ENTROPY DAN HONEY BEE MATING OPTIMIZATION UNTUK PENCARIAN MULTILEVEL THRESHOLD PADA CITRA GRAYSCALE Azhar, Yufis; Maskur, Maskur; Kholimi, Ali S
JUTI: Jurnal Ilmiah Teknologi Informasi Vol 10, No 1, Januari 2012
Publisher : Department of Informatics, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (607.459 KB) | DOI: 10.12962/j24068535.v10i1.a28

Abstract

Thresholding merupakan metode yang cukup populer untuk segmentasi suatu gambar. Untuk mensegmentasi suatu gambar grayscale menjadi gambar biner, bi-level thresholding bisa digunakan. Sedangkan untuk mensegmentasi citra grayscale ke dalam beberapa varian digunakanlah multi-level thresholding. Metode Maximum Tsallis Entropy (MTT) adalah salah satu metode yang bisa digunakan.untuk pencarian multi threshold pada suatu citra grayscale. Akan tetapi metode ini memiliki waktu komputasi yang sangat besar jika jumlah threshold yang dicari semakin banyak. Oleh karena itu, suatu metode baru diusulkan dalam penelitian ini yang merupakan penggabungan antara metode Maximum Tsallis Entropy dan algoritma Honey Bee Mating Optimization (HBMO) untuk mendapatkan multilevel threshold dari suatu citra grayscale dalam waktu yang relatif singkat. Metode penggabungan yang diusulkan ialah dengan memfungsikan algoritma MTT sebagai alat untuk mencari nilai fitness dari suatu individu dalam algoritma HBMO. Semakin baik nilai fitness yang dimiliki oleh individu, semakin baik pula threshold yang ditemukan. Hasil yang didapat dari ujicoba menunjukkan bahwa algoritma hybrid ini mampu mencari multi threshold dengan tingkat akurasi mencapai 98% dan waktu komputasi hingga 10 kali lebih cepat dibandingkan dengan waktu komputasi dari metode MTT untuk mencari 3 level threshold.
PENGARUH PERTUMBUHAN PENJUALAN, PROFITABILITAS, STRUKTUR AKTIVA DAN STRUKTUR KEPEMILIKAN TERHADAP STRUKTUR MODAL PADA PERUSAHAAN MANUFACTURE GO PUBLIC DI BURSA EFEK INDONESIA TAHUN 2008 – 2010 Maskur, Maskur
Students Journal of Economic and Management Vol 1, No 1 (2012): VOL. 1 NO. 1 EDISI PERTAMA 2012
Publisher : Students Journal of Economic and Management

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Abstract

Today the business world depends on all the funding issues, some experts agree that in order to get out of this economic crisis in the real sector should be mobilized to stimulate economic growth. However, many obstacles faced by the business, one of the most crucial is the problem of funding. The business world suffered a setback due to the credit crunch - credit given to the business regardless of the legal lending limit in the past by banks and credit worthiness issues approved. Therefore, both the management and the creditors are supposed to determine the factors associated with these funding issues. By knowing the factors that affect the capital structure is expected to be taken into consideration for management evaluation.
PENGARUH PERTUMBUHAN PENJUALAN, PROFITABILITAS, STRUKTUR AKTIVA DAN STRUKTUR KEPEMILIKAN TERHADAP STRUKTUR MODAL PADA PERUSAHAAN MANUFACTURE GO PUBLIC DI BURSA EFEK INDONESIA TAHUN 2008 – 2010 Maskur, Maskur
Students Journal of Accounting and Banking Vol 1, No 1 (2012): Vol. 1 No. 1 Edisi Pertama 2012
Publisher : Students Journal of Accounting and Banking

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Abstract

Struktur modal adalah perimbangan atau perbandingan antara modal asing (jangka panjang) dengan modal sendiri. Masalah struktur modal merupakan masalah yang penting bagi setiap perusahaan, karena baik buruknya struktur modal  akan mempunyai efek yang langsung terhadap posisi finansiil perusahaan. Suatu perusahaan yang mempunyai struktur modal yang beresiko, di mana mempunyai utang yang sangat besar yang akan memberikan beban yang berat kepada perusahaan yang bersangkutan. Struktur modal merupakan cermin dari kebijakan perusahaan dalam menentukan jenis securities yang dikeluarkan. Sebagaimana diuraikan di muka masalah struktur modal adalah erat berhubungan dengan masalah kapitalisasi, di mana susunan dari jenis-jenis funds yang membentuk kapitalisasi adalah merupakan struktur modalnya
Identifikasi Kondisi Fisik Daerah Aliran Sungai (DAS) Sungai Toaya Kecamatan Sindue Kabupaten Donggala Sulawesi Tengah Maskur, Maskur
Gravitasi Vol. 15 No. 2 (2016)
Publisher : Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/gravitasi.v15i2.9434

Abstract

ABSTRAK Penelitian identifikasi Kondisi Fisik Daerah Aliran Sungai (DAS) Sungai Toaya Kecamatan Sindue Kabupaten Donggala Provinsi Sulawesi Tengah telah dilakukan. Pada penelitian ini dilakukan pengukuran debit air dan pengambilan sampel air sedimen sungai Toaya di 3 lokasi yang berbeda. Masing di sebelah barat jembatan baja di Desa Toaya, di sebelah jembatan putus di Desa Toaya, dan di bendungan di Desa Taripa. Dari hasil pengukuran debit air sungai Toaya diperoleh data nilai rata-rata debit air sungai: 5,668 m3/detik atau 489.681,129 m3/hari dan hasil pengukuran debit sedimen air sungai Toaya diperoleh nilai rata-rata debit sedimen air sungai: 1,906 ton/hari, secara umum relatif kecil, tetapi pada musim penghujan debit sedimen tersebut meningkat. Dampak dari tingginya debit sedimen tersebut adalah terjadinya pendangkalan di muara sungai Toaya dan menjauhnya biota laut, khususnya ikan, dari perairan laut Desa Toaya. Kata Kunci : DAS, Sungai Toaya, debit, air. sedimen.
Contribution of Supervision of School Supervisor and School Quality Culture on Primary School’s Managerial Competence Maskur, Maskur; Haryono, Haryono; Hidayah, Isti
Educational Management Vol 7 No 1 (2018): June 2018
Publisher : Educational Management

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Abstract

Supervision of school supervisor is one of the instruments in improving the quality of education at schools. An effective school has strong cultures with particular characteristics. An effective school also needs a leader who is expert in implementing school based management. This research was aimed to find out the amount of contribution of school supervisor’s supervision and school quality culture towards elementary school principals’ managerial competence in Kendal regency. This research used quantitative approach. The population of this research is all elementary school principals in Kendal regency. The sample was 50 elementary school principals randomly selected from 5 districts in Kendal regency, namely Brangsong district, Weleri district, Pageruyung district, Kaliwungu district and Kendal Kota district. Data collection was conducted by using Likert scale questionnaire. Data analysis was carried out by using multiple linear regression analysis. The result shows that there is a significant influence of school supervisor’s supervision on principals’ managerial competence. This scale shows the strong influence between the two variables. These include the rectification and improvement of teaching learning process, construction and development of curriculum, and schools’ teachers and staffs human resource development. The responses of the principal on the points reflected the process of supervision conducted by school supervisor on the leadership and the condition of school in which he is in charge. The second result shows that there is a significant influence of school quality culture on principals’ managerial competence. This scale shows the strong influence between the two variables. Things which are related to school quality culture includes principal’s roles, work’s situation and the giving of feedback. The response of the principal reflected the condition of quality culture in the school he leads. Then, the other result of the research shows that school supervisor’s supervision and school quality culture together have significant influence on principals’ managerial competence. The variable of principals’ managerial competence can be explained by the variable of school supervisor’s supervision and school quality culture. It means the increase or decrease of the principal’s managerial competence score can be predicted by the two independent variables.  Suggestions which can be given based on the result of this research are that school supervisors should maintain the supervision process on their supervised schools, the principals who have already had good managerial competence should maintain it by supporting the supervision of school supervisors and keeping the good school quality cultures. Meanwhile, the principals who have not had the good managerial competence should start to respond supervision of school supervisors seriously, do some rectifications at school, and create conducive school quality culture. Also, school teachers and staff should always support the supervision process and the good condition  of school quality culture so that effective school can be achieved.
Analisis Perbedaan Jenis Kelamin Peserta Didik Terhadap Kemampuan Berpikir Reflektif Matematis Maskur, Maskur; Mujib, Mujib; Andriani, Siska
JURNAL e-DuMath Vol 5, No 2 (2019)
Publisher : JURNAL e-DuMath

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26638/je.807.2064

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The ability of mathematical reflective thinking is the ability of a person to choose previously owned concepts or knowledge that are relevant or appropriate to be used in making decisions when faced with mathematical problems. The purpose of this study was to determine the ability of mathematical reflective thinking in terms of the sex differences of eighth grade students of SMP N 11 Bandar Lampung. This type of research is qualitative descriptive research. Subject collection using purposive random sampling technique. The subjects of this study were 6 students from class VIII A consisting of 3 male students and 3 female students, and 6 students from class VIII B consisting of 3 male students and 3 female students. Data collection techniques used are observation, tests, and interviews. Based on the results of data analysis from class VIII A obtained the average value of mathematical reflective thinking abilities of male students 67,36 and the average value of mathematical reflective thinking abilities of female students reached 100, while for grade VIII B obtained an average value mathematical reflective thinking ability of male students 52,08 and female students 97,22. Thus it can be concluded that the students 'mathematical reflective thinking ability is better than the male students' reflective thinking ability. Keywords:  Mathematical Reflective Thinking Ability, Gender
PREPARASI RADIOFARMAKA 99mTc-DTPA-INH UNTUK DIAGNOSIS TUBERKULOSIS Astuti, Laksmi Andri; Setyowati, Sri; Triningsih, Triningsih; Maskur, Maskur; Widjaksana, Widyastuti
Jurnal Radioisotop dan Radiofarmaka Vol 14, No 1 (2011): Jurnal PRR 2011
Publisher : Jurnal Radioisotop dan Radiofarmaka

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Abstract

ABSTRAKPREPARASI RADIOFARMAKA 99mTc__DTPA_INH UNTUK DIAGNOSIS TUBERKULOSIS.Radiofarmaka telah menunjukkan manfaat yang nyata dan spesifik dalam pelayanan kesehatan terutama untuk diagnosis dan terapi antara lain untuk penyakit kanker dan infeksi. Salah satu cara. menangani banyaknya kasus tuberkulosis yang banyak terdapat di Indonesia, teknik kedokteran nuklir menggunakan radiofarmaka diethylenefriaminepenfaacetic acid-isonicotinic acid hydrazide (DTP A-INH) yang yang ditandai dengan teknesium-99m dapat dipakai salah satu metoda altematif untuk diagnosis tuberkulosis. Saat ini telah dilakukan preparasi 99mTc_DTP A-INH, 991~C_DTPA-INH dilakukan melalui beberapa tahapan yaitu: konyugasi DTPA-INH dan analisis hasil konyugasi dengan HPLC kolom C-18. Penandaan DTP A-INH dengan Tc-99m dilakukan dengan menambahkan SnClz sebagai reduktor dan larutan 99mTcperteknetat dan generator 99Mo;99mTc.Hasil penandaan dianalisis dengan menggunakan kromatografi kertas dan kromatografi lapis tipis, sedangkan stabilitas DTP A-INH dilakukan untuk menentukan waktu kadaluwarsanya. Hasil analisi dengan HPLC menggunakan kolom C-18 menunjukkan telah terjadi konyugasi antara DTPA dengan INH, sedangkan analisis dengan kromatografi kertas dan kromatografi lapis tipis menunjukkan kemurnian radiokimia lebih besar dari 90 % dan hasil pelabelan terbaik didapatkan pada penambahan SnClz sebanyak 200 ).lg. Hasil uji stabilitas untuk sediaan yang belum dilabel, menunjukkan sediaan masih stabil pada minggu ke 13. Pengujian kestabilan 99mTc_DTPA-INH pada suhu kamar menunjukkan kemurnian radiokimia masih stabil sampai 3 jam setelah penandaan. Kata kunci : radiofarmaka, Tc-99m, DTP A, INH, diagnosis, tuberkulosis. ABSTRACT PREPARATION OF 99mTc-DTPA-INH RADIO PHARMACEUTICALS FOR TUBERCULOSIS DIAGNOSIS. Radiopharmaceuticals have shown a real and spesifik usefulness in medical services, especially for diagnosis and therapy of several deadly diseases such as cancer and infection. To handle Tubeculosis which is common in Indonesia, nuclear medicine teclmiques which uses DTPA-INH radiophannaceutical labeled with technetium-99m offer an alternative method for tuberculosis 99m diagnosis. Preparation of Tc-DTP A-INH and its analysis have been carried out. The preparation consisted 99111 of several steps, conjugation of DTPA with INH and the conjugated DTPA-INH was labeled with Tc, 99m followed by C-18 HPLC analysis. Radiochemical purity of Tc-DTP A-INH was ana lysed using TLC/paper chromatography. Stability test of DTP A-INH to know the expiry date was carried out. The HPLC result showed that the conjugated DTP A-INH has been formed. The radiochemical purity of 99mTc_TPA-INH analysed with TLC/paper chromatography was obtained at higher than 90 %. Best result was obtained by addition of 200 ).lgram of SnClz. The stability test showed that DTP A-INH was stable until 13 weeks and thestability of labeled DTP A-INH at room temperature was stable after 3 hours incubation post labeling. Key words: radiophannaceutical, Tc-99m, DTP A, INH, diagnosis, tuberculosis    
Karakterisasi Mineral Magnetik Batuan Beku Wilayah Kulawi Kabupaten Sigi Sulawesi Tengah Dengan Menggunakan Metode Isothermal Remanent Magnetization (IRM) Maskur, Maskur; Utami, Annisa; Sandra, Sandra
Gravitasi Vol. 16 No. 1 (2017)
Publisher : Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (219.237 KB) | DOI: 10.22487/gravitasi.v16i1.9593

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Telah dilakukan karakterisasi mineral magnetik batuan beku di Wilayah Kulawi Kabupaten Sigi Sulawesi Tengah. Tujuan dari penelitian ini adalah untuk mengetahui jenis mineral magnetik yang terdapat pada suatu sampel batuan dari masing-masing tempat seperti Desa Namo, Desa Lonca, Desa Toro dan Desa Sungku. Penentuan jenis mineral magnetik batuan dilakukan dengan menggunakan metode Isothermal Remanent Magnetization (IRM). Berdasarkan hasil pengukuran yang terlihat pada kurva saturasi pemberian IRM terhadap spesimen Namo, Lonca, Toro, dan Sungku, mengindikasikan bahwa mineral magnetik yang terkandung pada semua specimen yang diteliti adalah mineral magnetik jenis Magnetite. Hal ini disebabkan karena proses saturasinya terjadi lebih cepat, dibandingkan mineral magnetik jenis hematite, dimana keempat spesimen tersebut mulai tersaturasi pada medan magnet antara 100 mT - 300 mT.Kata Kunci : Batuan Beku, Hematite, Isothermal Remanent Magnetization (IRM), Kurva Saturasi, Magnetite 
PENTINGNYA HUMAS PADA STAKE HOLDER INSTITUSI PENDIDIKAN Maskur, Maskur
Wahana Akademika: Jurnal Studi Islam dan Sosial Vol 1, No 2 (2014): Wahana Akademika
Publisher : Kopertais Wilayah X Jawa Tengah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/wa.v1i2.811

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AbstractResearch on the implementation of public relations management in SMP Islam Al - Azhar 14 Semarang has a goal to find a variety of public relations programs at SMP Islam Al - Azhar 14 Semarang , knowing the implementation of public relations programs on SMP Islam Al - Azhar 14 Semarang as well as to determine the various factors that affect the implementation of the program public relations and the implications of the implementation of the management program of public relations for the Islamic Al - Azhar SMP 14 Semarang .The method used is descriptive research with a qualitative evaluation approach . Where research is directed to provide a detailed overview of the various programs implemented in the junior public relations Islam Al - Azhar 14 Semarang . The study is directed to look at the success rate of public relations programs that have been planned , so as to see the suitability of the program emphasized the implementation of public relations programs . By looking at the level of implementation of public relations programs , it will be able to see a variety of factors that encourage , or factors that mengambat implementation of public relations programs at SMP Islam Al - Azhar 14 Semarang . The most important thing that is examined in this study also aimed to see dampk arising from the absence of the implementation of public relations management , the impact of both positive and negative impacts of the implementation of public relations management .The results showed that the public relations program at SMP Islam Al - Azhar 14 Semarang has distinguished between internal and external programs . Internally directed public relations programs to build a harmonious ties between large families SMP Islam Al - Azhar 14 Semarang , while externally directed public relations programs to build a positive public image of the institution , so that pretty much diverse activities , developing a kind of activity the ability of teachers , development of religious , braid premises cooperation of various parties as well as improving the quality of learning activities are carried out . The implementation of public relations programs both internally and externally is quite in accordance with the planned public relations program . The factors that drive the implementation of which is a form of public relations management frinchese driving school set school standards with standard central schools , foundation support and the support of principals who strongly support the implementation of public relations management in SMP Islam Al - Azhar 14 Semarang . While the factors that hinder the implementation of the separation of the management of public relations is not yet in the public relations vice principal public relations , media and public relations ability of users who have not been competent in the use of information presented by the publicity department . The impact of the implementation of public relations major manejemen is a positive image of the institution in the eyes of the public the better .Keywords: public relations program , implementation of public relations programs
Pengaruh Kedalaman Terhadap Proses Pelapisan Inti Bulat Pada Kerang Air Tawar (Anodonta woodiana) Rachman, Boedi; Winanto, Tjahjo; Maskur, Maskur; Sukmajaya, Yade
JURNAL BIOLOGI INDONESIA Vol 6, No 1 (2009): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (120.952 KB) | DOI: 10.14203/jbi.v6i1.3172

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ABSTRACTThe Effect of Depth to Deposition Process on Round Nucleus of Fresh Water Mussel (Anodontawoodiana). One of the affecting factors to the quality of pearl culture is the thickness of pearldepositions (nacre). The objective of this study was to obtain information on best level ofdepth to culture of pearl, to get fast nacre deposition and high quality of pearl. The researchwas conducted for 9 months, in the freshwater pond, was 300 m2 wide and 1 m deep. Freshwaterpearl Anodonta woodiana, sized ranging from 12 – 15 cm were studied. Completely randomizeddesign was used with levels of deep treatment (A) 30 cm; (B) 60 cm and (C) 90 cm. The resultshowed that best thickness of pearl deposition by 90 cm deep (1.30 mm) but hasn’t biggestsignificant (P>0.05) to the deep of 60 cm (1.10 mm) and biggest significant (P< 0.05) to the deepof 30 cm (0.70 mm). The result of implantation was followed that 30, 60 and 90 cm deep were 11.9%; 12.2 %; 12.0 %, whereas survival rate was followed 79.2 %; 79 % and 78.7 %.Keywords: Freshwater mussel; Anodonta woodiana; effect; level of deepKata kunci: Kerang air tawar, Anodonta, woodiana, kedalaman laut