Articles

STATUS EKOLOGI HUTAN MANGROVE PADA BERBAGAI TINGKAT KETEBALAN Setiawan, Heru
Jurnal Penelitian Kehutanan Wallacea Vol 2, No 2 (2013): Jurnal Penelitian Kehutanan Wallacea
Publisher : Balai Penelitian dan Pengembangan Lingkungan Hidup dan Kehutanan Makassar

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Abstract

This research was aimed to know the ecological condition of mangrove forest at various thickness levels and its influence on salinity of fresh water at surrounding area. This research was conducted by analysis of sea water, fresh water, plankton, substrate (soil), and makrobenthos at three location, those were: (1) mangrove with high thickness level (200-300 metre) in Tongke-Tongke Village, (2) mangrove with middle thickness level in Panaikang Village and (3) location without mangrove in Pasimarannu Village. The result of analysis showed that the rate of DO and BOD of seawater in Tongke-Tongke were 5,76 ppm and 1,68 ppm, Panaikang village were 6,48 ppm and 3,63 ppm and Pasimarannu village 6,72 pm and 3,36 ppm. Based on fresh water analysis, the ecosystem of mangrove has significant influence to reduce salinity level. The salinity of fresh water in location with highest thickness level is lowest (Tongke-Tongke is 2.2 ppt) compared to others (Panaikang 2.4 ppt and Pasimarannu 3.2 ppt). The result of substrat analysis showed similar result in which the highest organic substance rate is in Tongke-Tongke followed by Panaikang and Pasimarannu. Abundance of plankton and makrobentos in location with highest thickness level is highest (Tongke-Tongke 210 individu/ml and 849 individu/m2) compared to others (Panaikang is 202 individu/ml and 815 individu/m2 and Pasimarannu village 132 individu/ml and 320 individu/m2)Keywords : Mangrove, ecological condition, thickness level
KERAGAMAN JENIS BURUNG PADA KAWASAN MANGROVE DI TAMAN NASIONAL RAWA AOPA WATUMOHAI Qiptiyah, Maryatul; Broto, Bayu Wisnu; Setiawan, Heru
Jurnal Penelitian Kehutanan Wallacea Vol 2, No 1 (2013): Jurnal Penelitian Kehutanan Wallacea
Publisher : Balai Penelitian dan Pengembangan Lingkungan Hidup dan Kehutanan Makassar

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Abstract

Bird is one of the important species associated with mangrove vegetation. This study aims to determine the diversity of birds in the mangrove areas of Rawa Aopa Watumohai National Park, Indonesia. Observations were done at 12 points for data collection by scanning field by field method. The results revealed that about 54 bird species was found in the surrounding mangrove, eight types of which species was Sulawesi endemic birds and at least three types of which species was migratory birds. The bird species commonly found was Pergam Laut (Ducula bicolor), as many as 63 individuals. Index of bird diversity in the mangrove Rawa Aopa Watumohai National Park was 3.40.Keywords : Diversity, birds, mangrove, Rawa Aopa Watumohai National Park
PENINGKATAN KETERAMPILAN PROSES SAINS SISWA MELALUI PENDEKATAN KETERAMPILAN PROSES DALAM PEMBELAJARAN IPA KELAS III SD Setiawan, Heru; Sabri, Tahmid; Kresnadi, Hery
Jurnal Pendidikan dan Pembelajaran Vol 2, No 9 (2013): September 2013
Publisher : Jurnal Pendidikan dan Pembelajaran

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Abstrak: Tujuan penelitian ini untuk meningkatkan keterampilan proses sains siswa kelas III SDN 13 Pontianak Barat. Metode yang digunakan adalah metode deskriptif, bersifat kualitatif. Bentuk penelitian ini penelitian tindakan kelas dengan subjek penelitian guru dan siswa kelas III yang berjumlah 30 siswa. prosedur penelitian menggunakan tahapan; perencanaan, pelaksanaan, observasi dan refleksi. Tekhnik analisis data menggunakan skor rata-rata dan rumus presentase sedangkan alat pengumpul data menggunakan lembar observasi, portofolio LKS dan catatan lapangan. Hasil penelitian Keterampilan proses sains siswa dalam hal kemampuan mengamati mengalami peningkatan dari siklus I ke siklus III sebesar 26,66%, yang pada siklus I 63,34% menjadi 90,00% pada siklus III. Mengklasifikasi sebesar 20,00%, yang pada siklus I 70,00% menjadi 90,00%.pada siklus III. Mengkomunikasikan sebesar 25,00%, yang pada siklus I 65,00% menjadi 90,00% pada siklus III. Menyimpulkan sebesar 23,34%, yang pada siklus I 60,00% menjadi 83,34% pada siklus III.   Kata Kunci:  Keterampilan Proses Sains, Pembelajaran IPA, Pendekatan Keterampilan Proses   Abstract: The purpose of this research is improve the skills of  the fourth grade sains students of SDN 13 West Pontianak. The method used is qualitative desenptive method. The form of this research is classroom acton research; planning, implementation, observation and reflection. Technical analysis of the data using the percentage formula and the average score while data collection tool using the observation sheet, portofolio of sheet work students and field script. The results in the fourth grade sains students in observation skill increased from cycle I to cycle III 26,66% in cycle I 63,34% to be 90.00% in cycle III. Classification skill increased from cycle I to cycle III 20,00% in cycle I 70,00% to be 90.00% in cycle III. Communication skill increased from cycle I to cycle III 25,00% in cycle I 65,00% to be 90.00% in cycle III. Inference skill increased from cycle I to cycle III 23,34% in cycle I 60,00% to be 83,34% in cycle III.   Keywords: Skills of Fourth Grade Sains, Sains Studies, Skills of Fourth Grade Approach
Pengaruh Budaya Organisasi dan Program Keselamatan, Kesehatan Kerja (K3) pada Produktivitas Karyawan PT KAI Bandung Setiawan, Heru
Jurnal Trikonomika Vol 8, No 1 (2009): Edisi Juni 2009
Publisher : Jurnal Trikonomika

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Abstract

Human Resources is one of the most important factor in achieving the company goals. The limited human resources with high competency become one of the company constraint in Indonesia. Goal of this research is to know the influence of organizational culture, and K3 program to PT Kereta Api Persero Bandung employees productivity. This research used descriptive dan verifikatif method. Sampling techniques used simple random sampling with the number of samples equal to 43 respondents. Primary dan secondary data has been used in this research. Multiple regression analysis employed to know the influence of organizational culture, and K3 program to PT Kereta Api Persero Bandung employees productivity. Several statistical test have been used to determine the validity and reliability data, correlation between variable, coefficient determinant, and hypotesis assesstment. The study found that the organizational culture and K3 program significantly have positive effect on employee productivity. However improvement of employees productivity in PT KAI still lower. This happened because still lack of incentive for employees in the form of appreciation and reward.
Kelimpahan dan Keanekaragaman Jenis Burung di Enclave Lindu Taman Nasional Lore Lindu Setiawan, Heru
Biota Biota Volume 13 Nomor 2 Tahun 2014
Publisher : PBI Yogyakarta

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AbstractLindu Enclave area is an area that cannot be separated from the Lore Lindu National Park (TNLL) because it is situated in the TNLL area. Lore Lindu National Park is located in the Wallacea area with high level diversity especially for the bird diversity. The existence of TNLL has an important role as habitat for 80% of Sulawesi endemic birds. This study aimed to determine the diversity of birds in the Lindu Enclave. Data was collected using PIA (Point Index of Abundance) method with 14 observation points which were scattered in two villages: Tomado Village and Anca Village. The results of bird watching analysis showed that as many as 51 species of birds from 25 families were found in the Lindu Enclave. Out of 51 birds, there were 14 species categorized in the protected birds and 15 species were endemic birds. Out of 15 species endemic bird, 4 species were categorized in the protected bird species. The most common bird species was intermediate egret (Egretta intermedia), as many as 86 individuals. Bird diversity index in Lindu Enclave area was 3.23 that categorized on the high diversity level.Keywords: Lindu Enclave, biophysical, bird diversity, Lore Lindu National ParkAbstrakKawasan Enclave Lindu merupakan daerah yang tidak dapat dipisahkan dari Taman Nasional Lore Lindu (TNLL) karena letaknya yang berada di dalam kawasan TNLL. Taman Nasional Lore Lindu berada dalam kawasan Wallacea dengan tingkat keanekaragaman hayati yang tinggi khususnya jenis burung. Keberadaan TNLL mempunyai peranan yang penting sebagai habitat burung karena 80% burung endemik Sulawesi terdapat di kawasan  ini. Penelitian ini bertujuan mengetahui keanekaragaman jenis burung di kawasan Enclave Lindu. Pengambilan data menggunakan metode IPA (Indeks Point of Abundance) dengan 14 titik pengamatan yang tersebar di dua desa yaitu Desa Tomado dan Desa Anca. Hasil penelitian menunjukkan sebanyak 51 jenis burung dari 25 famili berhasil ditemukan di kawasan Enclave Lindu. Dari 51 jenis burung tersebut, terdapat 14 jenis yang termasuk dalam jenis burung dilindungi dan 15 jenis burung endemik. Dari 15 jenis burung endemik tersebut terdapat 4 jenis burung yang termasuk dalam jenis burung yang dilindungi. Jenis burung yang paling umum ditemukan adalah Kuntul perak (Egretta intermedia), sebanyak 86 individu. Indeks keanekaragaman jenis burung di kawasan Enclave Lindu adalah 3,23 dengan tingkat keanekaragaman yang tergolong tinggi.Kata kunci: Enclave Lindu, biofisik, keanekaragaman burung, Taman Nasional Lore Lindu
ANALISIS INVESTASI DALAM MENENTUKAN PORTOFOLIO OPTIMAL DI BURSA EFEK JAKARTA Setiawan, Heru; Syamsudin, Lukman -; Nimran, Umar -
WACANA, Jurnal Sosial dan Humaniora Vol 13, No 4 (2010)
Publisher : Program Pascasarjana Universitas Brawijaya

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ABSTRACT   This research is an effort to show how to analyse an investment by diversificating in order to minimize the risk and to gain expected profit through Simple Criteria for Optimal Portfolio Selection (SCOPS) method supported by Capital Asset Pricing Model (CAPM) method as a comparative factor. Data were taken from Index LQ 45 which having the bigest capitalization and liquid in trading frequency. Sampling with drawal was done with certain creterians and 27 selected from 45 population. Results of this research indicates that beta as a risk measurement reffecting less influence on market. 27 from selected samples 5 of them become optimal portfolio candidates among others Lippo Land Devlopment (LPLD), Astra International Inc (ASII), Telkom (TLKM), Lippo Bank (LPBN), and Barito Pacific Timber (BRPT) with each Excess Return to Beta (ERB) 2.2576, 2.0407, 0.5102, 0.4576 and 0.2801 which is higher than cut off rate (C*) namely 0.1106. The proportion of invested funds on each share 16.65 % for LPLD, 56.91 % for ASII, 14.82 for TLKM, 5.20 % for LPBN, and 6.42 % for BRPT with return portfolio ( ) 0.0406 and portfolio risk ( ) 1.5839. It is concluded that SCOPS method has been functioned in line with this research of which the selected shere become optimal portfolio candidate is the best diversification although the resnlt of test corelation is not significant.   Keywords : Investment, diversificating   ABSTRAK   Penelitian ini bertujuan mengungkapkan bagaimana menganalisis suatu investasi dengan cara diversifikasi  agar dapat meminimisasi risiko dan mencapai keuntungan yang di harapkan, melalui metode Simple Criteria for Optimal Portfolio Selection (SCOPS) didukung oleh metode Capital Asset Pricing Model  (CAPM) sebagai bahan pembanding. Data saham diambil dari Indeks LQ 45 yang memiliki kapitalisasi terbesar dan likuid dalam prekwensi perdagangan, dilakukan dengan kriteria tertentu terpilih 27 saham sebagai populasi, kemudian dilakukan sensus. Hasil penelitian menunjukan bahwa beta sebagai ukuran risiko kurang mencerminkan pengaruh terhadap pasar. Return saham Indeks LQ 45 berdasarkan hasil perhitungan konsep Capital Asset Pricing Model (CAPM) diperoleh hasil pengembalian berdasarkan tingkat risiko beta saling bertolak belakang dimana saham-saham yang memiliki return tinggi memiliki beta yang rendah dan sebaliknya return yang rendah memiliki beta yang tinggi. Dari 27 saham terpilih 5 saham yang menjadi kandidat portofolio optimal diantaranya : Lippo Land Development (LPLD), Astra International Inc (ASII), Telkom (TLKM), Lippo Bank (LPBN), dan Barito Pasifik Timber (BRPT) dengan Excess Return to Beta (ERB) masing-masing 2.2576, 2.0407, 0.5102, 0.4576, 0.2801 yang lebih tinggi dari Cut off Rate (C*) yaitu 0.1106. Proporsi dana yang di investasikan pada masing-masing saham 16.65 % untuk LPLD, 56.91 % untuk ASII, 14.82 % untuk TLKM, 5.20 % untuk LPBN dan 6.42 % untuk BRPT dengan return portofolio (Rp) 0.0396 dan risiko portofolio (Bp) 1.5839. Melihat hal tersebut sham- saham  yang   membentuk   portofolio   optimal   berhasil   meningkatkan   return  sebesar 51.61 % walaupun harus diikuti sedikit peningkatan risiko sebesar 13.88 %, dengan demikian secara tidak langsung diversifikasi saham  berhasil mengurangi risiko sebesar 37.73 %. Dari hasil uji simulasi alternatif portofolio optimal secara keseluruhan terbukti bahwa pasangan portofolio yang terseleksi dengan model Simple Criteria Portfolio Optimal Selection (SCOPS) merupakan pasangan terbaik diantara pasangan alternatif lainnya, Walaupun hasil uji korelasi return antar saham portofolio optimal menunjukan hasil yang tidak signifikan, hal tersebut dikarenakan sulit sekali mencari pasangan portofolio yang benar- benar ideal apalagi lingkup penelitian ini terbatas hanya pada Indeks LQ 45 saja. Berdasarkan hasil penelitian tersebut dengan segala kelemahan yang ada, dapat penulis sarankan sebagai berikut : (1) Kiranya perlu dilakukan penelitian ulang mengenai hal ini dengan menambah jumlah sampel yang lebih Presentatif serta periode pengamatan yang lebih panjang, lebih jauh dari itu hendaknya data saham pada pasca pertengahan tahun 1997 harus di teliti guna mengetahui dampak dari  krisis ekonomi terhadap pembentukan portofolio optimal. (2) menambah hasil referensi penelitian yang mendukung terutama dari lembaga yang melakukan hal serupa. (3) Data analisis secara kuantitatif hendaknya didukung oleh data yang menggunakan pendekatan subjective judgement yang bersifat kualitatif dari berbagai ahli bidang tersebut, guna melengkapi dan menyempurnakan hasil penelitian.   kata kunci : Investasi, diversifikasi
Akumulasi dan Distribusi Logam Berat pada Vegetasi Mangrove di Pesisir Sulawesi Selatan Setiawan, Heru
Jurnal Ilmu Kehutanan Vol 7, No 1 (2013)
Publisher : Jurnal Ilmu Kehutanan

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Abstract

Mangroves have ecological functions to absorb, transport and stockpile toxic materials, e.g., heavy metal from surrounding environment. This research aimed to know the accumulation and distribution of heavy metals, i.e. Lead (Pb), Cuprum (Cu) and Cadmium (Cd) in mangrove vegetation of South Sulawesi. Vegetation samples were collected from four research location, which were Tanjung Bunga Makassar, Tallo River Makassar, Pare-Pare Bay and Bone Bay. Distribution of heavy metals in mangrove tissues was devided into five areas: pneumatophora, cable root, young leaves, old leaves and twig. Heavy metal content in the samples was measured using Atomic Absorption Spectrophotometric (AAS). The results showed that the highest accumulation of Pb was derived from the sample in Tallo River with 36.1 ppm. The highest accumulation of Cu was derived from Tanjung Bunga Makassar with 42.8 ppm. The highest accumulation of Cd was derived from Tallo River with 29.3 ppm. The distribution of heavy metals in mangrove showed that the highest accumulation of Pb was found in the cable roots with 9.5 ppm. The highest concentration of Cd was found in the young leaf with 3.1 ppm. The highest concentration of Cu was found in the cable roots with 10.1 ppm. Generally, Avicennia marina is mangrove species that has the highest concentration of heavy metals with Pb 24.2 ppm, Cd 30.9 ppm and Cu 71.2 ppm. Intisari Tumbuhan mangrove mempunyai fungsi ekologis yaitu dapat menyerap, mengangkut dan menimbun materi yang bersifat toksik yang berasal dari sekitar lingkungan tempat tumbuhnya, salah satunya adalah logam berat. Penelitian ini bertujuan untuk mengetahui akumulasi dan distribusi logam berat jenis Timbal (Pb), Tembaga (Cu) dan Kadmium (Cd) pada vegetasi mangrove di perairan pesisir Sulawesi Selatan. Sampel vegetasi mangrove diambil dari empat lokasi, yaitu sekitar Pantai Tanjung Bunga Makassar, Muara Sungai Tallo Makassar, Teluk Pare-Pare dan Teluk Bone. Distribusi logam berat pada vegetasi mangrove dibagi dalam lima jaringan yaitu, akar napas, akar kawat, daun muda, daun tua dan ranting. Kandungan logam berat dalam sampel diukur dengan menggunakan alat Atomic Absorption Spectrophotometric(AAS). Hasil penelitian menunjukkan, akumulasi Pb terbesar berasal dari sampel vegetasi mangrove di Muara Sungai Tallo yaitu 36,1 ppm, akumulasi Cu terbesar dari Pantai Tanjung Bunga Makassar 42,8 ppm, dan akumulasi Cd terbesar dari Muara Sungai Tallo yaitu 29,3 ppm. Distribusi logam berat pada jaringan vegetasi mangrove yang paling tinggi, untuk Pb terdapat pada akar kawat yaitu 9,5 ppm, akumulasi logam berat Cd tertinggi terdapat pada jaringan daun muda yaitu 3,1 ppm, sedangkan akumulasi logam berat Cu yang tertinggi terdapat pada jaringan akar kawat yaitu 10,1 ppm. Secara umum, jenis Api-api (Avicennia marina) merupakan jenis mangrove yang paling besar menyerap logam berat dengan kandungan Pb sebesar 24,2 ppm, Cd sebesar 30, 9 ppm dan Cu sebesar 71,2 ppm.Katakunci: logam berat, mangrove, perairan pesisir, Sulawesi Selatan.
Analisis Tingkat Kapasitas Dan Strategi Coping Masyarakat Lokal Dalam Menghadapi Bencana Longsor- Studi Kasus Di Tawangmangu, Karanganyar, Jawa Tengah Setiawan, Heru
Jurnal Penelitian Sosial dan Ekonomi Kehutanan Vol 11, No 1 (2014): Jurnal Penelitian Sosial Ekonomi Kehutanan
Publisher : Pusat Penelitian dan Pengembangan Perubahan Iklim dan Kebijakan

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Abstract

Longsor di Kecamatan Tawangmangu Kabupaten Karanganyar pada tahun 2007 mengakibatkan puluhan rumah rusak dan puluhan nyawa melayang. Analisis tingkat kapasitas masyarakat dalam menghadapi bencana longsor merupakan elemen penting untuk mengetahui tingkat kesiapsiagaan masyarakat dalam menghadapi bencana longsor yang akan terjadi di masa mendatang dan untuk meminimalkan dampak negatif yang timbul akibat bencana longsor. Penelitian ini dilakukan di Desa Tengklik dan Desa Tawangmangu Kecamatan Tawangmangu Kabupaten Karanganyar. Tujuan penelitian ini adalah untuk mengidentifikasi strategi coping yang dilakukan masyarakat lokal dan menilai tingkat kapasitas masyarakat lokal dalam menghadapi bencana longsor. Metode survei dengan pemilihan responden yang dilakukan secara acak, diaplikasikan untuk mengetahui jenis-jenis staregi coping dan tingkat kapasitas masyarakat terhadap bencana longsor. Jumlah responden sebanyak 93 orang ditentukan secara proporsional dan tersebar di lima dusun, yaitu Dusun Plalar, Guyon, Sodong dan Salere di Desa Tengklik dan Dusun Ngledoksari di Desa Tawangmangu. Wawancara terhadap responden dilakukan dengan menggunakan kuesioner dengan tipe pertanyaan terbuka dan tertutup. Masyarakat lokal menerapkan empat tipe strategi coping, yaitu ekonomi, struktural, sosial dan kultural. Terdapat 51,6% responden mempunyai tingkat kapasitas yang tinggi, 33,3% berada pada tingkat sedang dan hanya 15,1% yang berada pada tingkat rendah. Faktor yang berpengaruh terhadap tingkat kapasitas masyarakat adalah tingkat pendidikan, penghasilan dan tipe rumah.
Study of Local People Perception Related to Landslide Hazard: A Case of Tawangmangu Sub-District Karanganyar Regency Indonesia Setiawan, Heru; Hizbaron, Dyah R
Forum Geografi Vol 28, No 1 (2014)
Publisher : Universitas Muhammadiyah Surakarta

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In 2007, a series of landslides occurred at Tawangmangu, resulting in the collapse of several houses and the death of dozens of people. One essential pathway to reduce the vulnerability of communities goes through an increased preparedness. The present contribution aims to determine existing level of preparedness by analysing the people perception and knowledgeof landslides. Survey method with random sampling technique was applied to assess the level of people perception and to analysis local people knowledge regarding with landslide. The number of respondents was spread proportionally across five sub-villages; Plalar, Guyon, Sodong, Salere and Ngledoksari. The respondents were interviewed using questionnaires with open and closed questions. Statistical analysis with multiple linear regressions was applied to identify the influencing factors of local people perception related to landside. The result show that people in the area have good knowledge and perception about landslide. This condition is commonly influenced by age and education.
The Effectiveness of Teaching English Vocabulary in the theme of "Animals And Plants" Using Crossword Puzzle Setiawan, Heru
JURNAL DIDASCEIN BAHASA Vol 1, No 1 (2015): November
Publisher : UNIVERSITAS TRIDINANTI PALEMBANG

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Abstract

ABSTRACT: The objective of this study was to find out whether or not it was effective teaching English vocabulary in the theme of "Animals and Plants" using crossword puzzle. The population of this study was the seventh grade students of Junior High School Sriwijaya of Palembang in the academic year 2013/2014. The sample was taken from one class that consists of 30 students through convenience non-random sampling. The method of this study was the pre-experimental method with one group pre-test and post-test design. The data were obtained by means of the test, the result were analyzed through matched t-test formula. Based on the study, it was to found that teaching English vocabulary in the theme of "animals and plants" using crossword puzzle to the seventh grade students of Junior High School Sriwijaya of Palembang was effective. The students score has increased from 67.7 in the pre-test to 85.08 in the post-test and it was found that t-test was higher than t-table (7.3 > 1.697). It means that teaching English vocabulary in the theme of "animals and plants" using crossword puzzle was significantly effective. Key words: vocabulary, animals and plants theme, crossword puzzle