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All Journal Jurnal Ilmu Pertanian Indonesia Jurnal Ilmu dan Teknologi Hasil Hutan JURNAL HUTAN LESTARI Science and Technology Indonesia Insight: Jurnal Bimbingan dan Konseling Jurnal Biogenerasi International Journal of Research in Vocational Studies (IJRVOCAS) PEMA: Jurnal Pendidikan dan Pengabdian Kepada Masyarakat JEUMPA TONGKONAN: Jurnal Pengabdian Masyarakat International Journal of Business English and Communication (IJoBEC) JOURNAL OF COMMUNITY SERVICE AND APPLICATION SCIENCE (JCSAS) International Health Sciences Journal Journal of Islamic Economic and Law (JIEL) Jurnal Kesehatan Lentera Aisyiyah Jurnal Cermatika
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SIFAT FISIK DAN MEKANIK PAPAN PARTIKEL TIGA LAPIS DARI KULIT BUAH DURIAN BERDASARKAN KONSENTRASI PEREKAT Siallagan, Tamauli; Oramahi, H A; Nurhaida, .
JURNAL HUTAN LESTARI Vol 4, No 4 (2016): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v4i4.18254

Abstract

Durian skin is made into particles as a material for furniture. Durian skin made into coarse particles with a size of passing through an 8 mesh, retained on a 20 mesh and fine particles passes through a 4 mesh, restrained on 6 mesh. The bonding material used is formaldehyde urea concentration of 12%, 14% and 16%  with other additives such as catalysts, paraffin and liquid smoke. The particle board is made with a size 30cm x 30cm x 1cm, the desired density is 0.6 g/cm3. The making of particle board used compression heat at 1400C with a specific pressure of 25 kg / cm2 for ± 10 minutes. The testing of the physical properties of particle board (desity, moisture content and thickness swelling) and mechanical properties of particle board (modulus of elasticity, modulus of  rupture, internal bording and screw holding strength) were conducted in accordance with the standard JIS A5908-2003. The results showed that the physical properties that meet the standard JIS A5908-2003 were the density and  moisture content, and for mechanical properties that meet the standard JIS A 5908-2003 were the bonding strength and screw holding strength. The best bonding concentration for physical and mechanical properties of particle board from durian skin is at a bording concentration of 16%. Keywords : Durian skin, particle board, physical
STUDI LAJU KONSUMSI UMPAN RAYAP COPTON 0.5 RB DALAM PENGENDALIAN RAYAP COPTOTERMES CURVIGNATHUS HOLMGREN PADA PERKEBUNAN KELAPA SAWIT ELAEIS GUINEENSIS JACQ Tampubolon, Ester Meilina; Diba, Farah; Nurhaida, .
JURNAL HUTAN LESTARI Vol 4, No 3 (2016): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v4i3.16281

Abstract

Oil palm plantations in West Kalimantan are located in an area dominated by peat soils. This condition makes oil palm trees vulnerable to subterranean termite attack. Coptotermes curvignathus Holmgren currently has become one of major key pest of oil palm. These termites attack the oil palm trunk, crown, fronds and fruits. Current practice of Termite control in oil palm is by direct spraying chemical pesticides, but this type of treatment proves uneconomical and hostile to the environment. In addition, chemical sprays are ineffective due tothe termite nest is below ground and the pesticide does not reachthe termites inside the nest. Therefore a new paradigm, such as baiting systemwhich the objective for termite colony elimination are needed to control termites in oilpalm plantation. This study aimed to evaluate the effectiveness of Copton 0.5 RB containing the active ingredient hexaflumuron 0.5% to control Coptotermes curvignathus in oil palm plantation at mature oil palm. Four blocks of an oil palm plantation with severe termite damage was chosen as test site. In each block consisted of four oil palm trees and one bait was place at one tree within each block. Monitoring was conducted every seven days for one month, and after that bait consumption and colony elimination were analyzed. The results showed average bait consumption value was 96.87%.The bait consumption activities start from seven days after installation. 1st monitoring showed good palatability that the termites consumed 13 from 16 baits. The consumption began to decline at the end of the fourth week. It was assumed that the baits were eliminatethe termite colony. The decline in termite attack in the oil palm trees was first observed with drying of the termite shelter tubes and by no termites inside the oil palm fronds. It is concluded that Copton0.5RB (hexaflumuron 0.5%) is effective for colony elimination of Coptotermescurvignathusin oil palm plantations. Keywords : Baiting system, Copton 0.5 RB, Coptotermes curvignathus, Hexaflumuron, oil palm plantation.
STABILITAS DIMENSI KAYU KARET (Hevea brasiliensis, Muell. Arg) BERDASARKAN POSISI KETINGGIAN PADA BATANG DAN SUHU PENGERINGAN Sarman, .; Usman, Fadillah H; Nurhaida, .
JURNAL HUTAN LESTARI Vol 5, No 4 (2017): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v5i4.22189

Abstract

AbstractThis research was carried out in the Wood Workshop Faculty of forestry University of Tanjungpura to manufacture test and example in the lab Silvikultur for testing the stability of dimension lumber, Wood is a material that besifat hygroscopic materials that can absorb and remove water depending on the environment. The test sample is inserted into each of the oven with a temperature of 500C, 700C, and 900C until it weighs the constant. The purpose of this research is to know the influence of the position on the stem height and temperature of drying as well as the interaction of these two factors the dimension stability of wood against the Rubber as well as knowing the position on the stem height and the most appropriate drying temperature so that it can show the highest dimensional stability. The results of the research on the radial direction indicates that the value of moisture content ranged from 9.8394%-10.3484% increase of the drying temperature decreases. While the value of density showed no noticeable difference i.e. ranged from 0.8188%-0.7669%. Depreciation value dimensions vary greatly on the position of the height of the stem that is ranged from 1.2189%.-3.1405%. Research on tangential direction indicates that the value of moisture content ranged from 9.9894%-14.6225% increase of the drying temperature decreases. While the value of density showed no noticeable difference i.e. value 0.7390%-0.8143%. Value changes in dimensions ranging from 1.1594%-2.1629%. The value of depreciation is not too mean and very varied temperature drying.Keywords : Dimensional stability, temperatur drying , The height position on the rod
KUALITAS PAPAN PARTIKEL DARI SERAT KULIT BATANG SAGU (Metroxylon spp) DENGAN PEREKAT ALAMI ASAM SITRAT BERDASARKAN WAKTU KEMPA Suhaimi, .; Setyawati, Dina; Nurhaida, .
JURNAL HUTAN LESTARI Vol 6, No 3 (2018): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v6i3.26885

Abstract

The research aimed to analyze the quality of Particleboard from Sago Fiber (Metroxylon spp) and natural citric acid adhesives based on the pressing time. The research was done in Wood Processing Laboratory of Faculty of Forestry of Tanjungpura University for the preparation of raw materials and Duta Pertiwi Nusantara (DPN) Laboratory for the manufacture and testing of samples. The materials used are sago bark fiber, citric acid adhesive and water aquades. Testing of particle board properties refers to JIS A 5908 - 2003 Type 8 standard covering physical and mechanical properties. Variations of pressure time used were 10 minutes, 15 minutes, and 20 minutes. The particle board is 30 cm x 30 cm x 1 cm forged hot with a temperature of 1600C at 25 kgf / cm2 pressure. The result of the research showed that the time of impact was significant to the density, and very significant effect on water absorption, thickness development, MOE, MOR, stickiness and screw holding strength, but no significant effect on water content. The physical properties of the particle board have tulltie JIS A 5908 - 2003 type 8 standards were density, moisture content, water absorption and thickness swelling at 15 minutes and 20 minutes. While the mechanical properties that fulfill the standard of JIS A 5908 - 2003 Type 8 is MOR at 20 minutes. The best particle board at 1600C with 20 minutes hot press time is: density 0,6084 g / cm3, moisture content 7.0987%, water absorption 64,9039%, thickness 4,1345% development, MOR 94,5187 kg / cm2.Keywords: Citric Acid, Particle Board, Particle Board Quality Of Sago Fiber, physical and mechanical properties, pressing Time.
SIFAT FISIK DAN MEKANIK KAYU MENGKUDU (Morinda citrifolia L) BERDASARKAN DIAMETER DAN POSISI KETINGGIAN BATANG Wahyuni, Sri; Usman, Fadiilah H; Nurhaida, .
JURNAL HUTAN LESTARI Vol 7, No 1 (2019): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v7i1.32115

Abstract

This study aims to determine the diameter and height position of noni wood that can produce the best physical and mechanical properties. The physical properties measured in this study were adjusted to their use, namely water content, density, and dimensional change using the standard British standard methods no. 373 (1999). Noni tree (Morinda citrifolia L) which is used in diameter 20 cm and 25 cm. Tree felling is carried out on branches as high as branch-free and 3 parts are taken, namely the base, middle, end where each part is 1 meter in size and the distance between parts is 1 meter. The three parts of the wood (base, middle, end) are made sticks measuring 2.5 x 2.5 x 1m. after that the stick is dried until it reaches a moisture content of 12-18%. This study used the Factorial Experiment pattern in Completely Randomized Design (CRD) with 2 treatment factors, namely a stem diameter of 25 cm, 20 cm, and height of stem (base, middle, end) so that 18 experimental combinations were obtained. The results showed that none wood (Morinda citrifolia L) was yellow ie 8/6 chroma value 2.5 Y and after being sprayed with a young cream color that is 7/4 Very Pale Brown 10 YR, until the old cream is 6/4 Light Yellowish Brown 10 YR based on Munsell 2000 with the best physical and mechanical properties is found in the diameter of 25 cm and the middle height of the stem with the value of water content 21.4690%, density 0.5500 gr / cm3, shrinkage 0.1122%, MOE 108810.37 kg / cm2, MOR 408,038.90 kg / cm2,MCS 280,00 kg/cm3 and included in the strong class category II-III.Keywords: Diameter, mechanical properties, noni, physical, the height position of a stem
Karakteristik Oriented Strand Board dari Kayu Akasia dan Afrika Berdasarkan Penyusunan Arah Strand Nurhaida Nurhaida; Naresworo Nugroho; Dede Hermawan
Jurnal Ilmu Pertanian Indonesia Vol. 13 No. 1 (2008): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (341.937 KB)

Abstract

The research objectives arc to evaluate physical and mechanical properties of OSB based on strands orientation; and to evaluate physical and mechanical properties of OSB made from akasia wood (Acacia mangium Wild) and afrika wood (Maesopsis eminii Engl). Akasia and afrika wood are used for OSB strand material with phenol formaldehyde (PF) as adhesives and addition of paraffin. OSB made in this research is consist of three plies whereas are differed into eight (8) strand orientations. In the making process, hot press was carried out at 160OC and pressure 25kg.cm-2 for 15 minutes. Determination of OSB physical and mechanical properties is referred to JIS A 5908-2003. Result showed that strand orientations has no affect to OSB physical properties except for linicr swelling 24h, but it significantly influence all mechanical properties of OSB. Wood species have an effect on mechanical properties of OSB in the dry test, wet MOE lengthwise test and OSB physical properties, particularly to OSB density and water absorbing capability at 2h and 24h. All of OSB physical properties arc meet JIS A 5908-2003 standard, but not all of the mechanical properties such as dry MOE lengthwise, dry MOE and MOR widthwise. The best physical and mechanical properties is presented by OSB made from akasia wood in strand orientation F, G, Band C whereas all parameters meet JIS A 5908-2003 standard. In comparation with strand orientation B that is frequent used in industry, strand orientation F and G arc proficient to raise the modulus elasticity value (MOE) and strength (MOR) as much as 167.81-231.65% and 89.73-109.87%, respectively; especially in widthwise board application. Furthermore, strand orientation F and G arc more flexible as structural components.   Keywords: oriented strand board, phenol formaldehyde, strand orientation
The research objectives are to evaluate physical and mechanical properties of OSB based on strand orientations made from akasia wood (Acacia mangium Wild) and afrika wood (Maesopsis eminii Engl). Akasia and afrika wood are used for OSB strand material with phenol formaldehyde (PF) as adhesives and addition of paraffin. OSB made in this research consists of three plies whereas are differed into eight strand orientations.  Hot press was carried out at 160ºC and pressure 25 kg/cm² for 15 minutes. D NURHAIDA .; Naresworo NUGROHO; Dede HERMAWAN
Jurnal Ilmu dan Teknologi Hasil Hutan Vol. 1 No. 2 (2008): Jurnal Ilmu Teknologi Hasil Hutan
Publisher : Departemen Hasil Hutan, IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The research objectives are to evaluate physical and mechanical properties of OSB based on strand orientations made from akasia wood (Acacia mangium Wild) and afrika wood (Maesopsis eminii Engl). Akasia and afrika wood are used for OSB strand material with phenol formaldehyde (PF) as adhesives and addition of paraffin. OSB made in this research consists of three plies whereas are differed into eight strand orientations.  Hot press was carried out at 160ºC and pressure 25 kg/cm² for 15 minutes. Determination of OSB physical and mechanical properties referred to JIS A 5908-2003. Result showed that strand orientations have not affected to OSB physical properties except for linear swelling 24 h, but it significantly influences all mechanical properties of OSB. Wood species has an effect on mechanical properties of OSB in the dry test, wet MOE lengthwise test and OSB physical properties, particularly to OSB density and water absorbing capability at 2 h and 24 h.  All of OSB physical properties are meet JIS A 5908-2003 standard, but not all of the mechanical properties such as dry MOE lengthwise, dry MOE and MOR widthwise. The best physical and mechanical properties is presented by OSB made from akasia wood in strand orientation F (core layer is orientated and surface layers are in random, R°/0°/R°), G (core layer is orientated 45° and surface layers are in random, R°/45°/R°), B (surface strand direction is upright to core strand direction, 0°/90º/0°), and C (core layer is in random, surface layers are orientated, 0°/R/0°) whereas all parameters meet JIS A 5908-2003 standard. In comparation with strand orientation B that is frequent used in industry, strand orientation F and G are proficient to raise the modulus elasticity value (MOE) and strength (MOR) as much as 167.8-231.7% and 89.7-109.9%, respectively; especially in widthwise board application. Furthermore, strand orientation F and G are more flexible as structural components. Keywords:   Oriented strand board, strand orientation, phenol formaldehyde
Optimization and Characterization of Liquid Smoke Produced by Terminalia catappa Wood Pyrolysis and its In Vitro Antifungal Activity Oramahi, Hasan Ashari; Maurisa, Tirsa; Nurhaida; Darwati, Herlina; Rifanjani, Slamet
Science and Technology Indonesia Vol. 9 No. 1 (2024): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2024.9.1.207-214

Abstract

This research utilized response surface methodology (RSM) to explore how the yield of liquid smoke obtained from ketapang wood (Terminalia catappa) is influenced by the size of wood particles and the temperature of pyrolysis. Gas chromatography-mass spectrometry (GC-MS) was used to characterize the liquid smoke. To assess liquid smoke’s antifungal effects, a petri dish bioassay was conducted using 1.0-4.0% (v/v) concentrations against Schizophyllum commune. RSM was applied to optimize vinegar from T. catappa by varying the wood particle size and the pyrolysis temperature. The optimal yield, 24.67%, was obtained with a 3.22 mm particle size and a 425°C pyrolysis temperature. The liquid smoke produced at 400-450°C completely inhibited of S. commune growth at 2.0-4.0%. The primary components of the liquid smoke at 400°C were 2-methoxy- phenol (24.85%), creosol (8.39%), 4-ethyl-2-methoxy- phenol (7.21%), 2-5-methyl-furancarboxaldehyde (4.55%), and 4-ethyl-2-methoxy-phenol (3.74%). The primary components at 425°C were 2-methoxy-phenol (25.60%), creosol (15.15%), 5-methyl-2 furancarboxaldehyde (12.75%), and 2,6-dimethoxy-phenol (9.31%). At 450°C, the main components were 2-methoxy-phenol (25.26%), 4-ethyl-2-methoxy-phenol (8.46%), creosol (8.40%), 5-methyl-2-furancarboxaldehyde (4.02%), and 4-ethyl-2-methoxy-phenol (3.98%).
Hubungan Tingkat Stres dengan Motivasi Belajar pada Siswa Kelas VIII di SMP Swasta IMELDA Polem, Ayu Muthma'innah; Sagala, Ismaniar Hasanah; Nurhaida
INSIGHT: Jurnal Bimbingan Konseling Vol. 13 No. 1 (2024): INSIGHT: Jurnal Bimbingan dan Konseling
Publisher : Program Studi Bimbingan dan Konseling, Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009//INSIGHT.131.10

Abstract

Stres merupakan salah satu faktor yang mempengaruhi motivasi siswa dalam belajar. Stress adalah respon tubuh terhadap ketidakmampuan menghadapi tuntutan yang diterima yang bisa mengganggu kesehatan yang ingin dicapai. Penelitian ini bertujaun untuk mengetahui hubungan tingkat stres dengan motivasi belajar siswa kelas VIII SMP Swasta Imelda. Penelitian ini menggunakan penelitian kuantitatif jenis korelasional. Populasi dari penelitian ini adalah siswa kelas VIII dan sampel dari penelitian ini adalah siswa kelas VII C yang berjumlah sebanyak 30 orang siswa. Dalam penelitian ini, teknik pengumpulan data yang dilakukan ialah dengan menyebarkan angket pada siswa kelas VII C. Kemudian data hasil angket ini diolah menggunakan SPSS versi 22.0. Maka, berdasarkan analisis data, hasil penelitian menunjukkan bahwa, berdasarkan korelasi uji spearman rank diperoleh hasil nilai sig = 0,324 dimana 0,324 > 0,05 yang artinya tidak terdapat korelasi antara tingkat stress dengan motivasi belajar siswa. Nilai correlation coefficient r ialah -0,186 dimana menunjukkan bahwa tingkat kekuatan korelasi adalah sangat lemah. Dan angka correlation coefficient pada hubungan di atas bernilai negatif, maka arah hubungan dari kedua variabel tersebut ialah tidak searah.
Peranan Bimbingan Konseling dalam Perkembangan Sosial Peserta Didik di Sekolah Desa Timbang Lawan Miftahul Nur Khairi Rangkuti; Najwa Nurhasyifa; Nurhaida; Putri Nabila Nasution; Sri Wahyuni
PEMA Vol. 5 No. 1 (2025)
Publisher : Perkumpulan Manajer Pendidikan Islam Indonesia (PERMAPENDIS) Prov. Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56832/pema.v5i1.849

Abstract

Perkembangan sosial peserta didik di sekolah tidak hanya mempengaruhi hubungan interpersonal mereka di sekolah, tetapi juga berdampak pada interaksi mereka di masyarakat. yang baik, termasuk dalam aspek empati, toleransi, penyelesaian konflik, dan partisipasi sosial. Tujuan penulisan jurnal ini adalah untuk menganalisis peranan BK dalam membantu peserta didik mengembangkan keterampilan sosial. Penelitian ini menggunakan metode penelitian kualitatif deskriptif, di mana data diperoleh melalui observasi, wawancara, dan dokumentasi. Pendekatan ini memungkinkan peneliti untuk menggali informasi secara mendalam mengenai pengalaman dan peran guru BK dalam perkembangan sosial peserta didik. Partisipan dalam penelitian ini adalah peserta didik di sekolah yang berlokasi di Desa Timbang Lawang, meskipun jumlah dan tingkat pendidikan spesifik dari partisipan tidak dijelaskan secara eksplisit dalam teks. Hasil penelitian menunjukkan bahwa Bimbingan Konseling memiliki peran penting dalam perkembangan sosial peserta didik. BK membantu siswa dalam meningkatkan kemampuan interpersonal, membangun empati dan toleransi, mengatasi konflik sosial, serta mendorong partisipasi sosial di sekolah. Implikasi dari penelitian ini adalah bahwa guru BK memiliki tanggung jawab besar dalam menangani permasalahan sosial yang dihadapi siswa melalui berbagai layanan dan kegiatan pendukung BK. Dengan demikian, hasil penelitian ini diharapkan dapat memberikan kontribusi bagi pengembangan strategi BK yang lebih efektif dalam mendukung perkembangan sosial peserta didik.
Co-Authors . Budi Adelia Pramita Sari ahmad yani Aldian Syaputra, Yoga Alfin Maulana Arfah Bachrun Nurdjali Cut Aja Nuraskin Dede Hermawan Dina Setyawati Dirhamsyah, . Endriani, Beti Fadillah H Usman Farah Diba Farahdiba, . Femi Earnestly Handayani, Geni Saputri Haritsah Hammamah Harahap Hasan Ashari Oramahi Helga Yermadona Herlina Darwati Hilum, Rium Indah Susanti L. Tangge Lubis, Loria Amisah M. Dirhamsyah Matulessy, Esther Ria Maurisa, Tirsa melda saputri Miftahul Nur Khairi Rangkuti Monim, Harina Orpa Lefina Muhlis, La ode Najwa Nurhasyifa Naresworo Nugroho Nita Diniati, Baiq Nova Rita, Nova Pidola, Viras Alti Polem, Ayu Muthma'innah Prayoga, Dendi Puspa Riani Nasution Putri Nabila Nasution Rahmad Saputra Rahmawati Rahmawati Reca Reca Refialdinata, Jeki Riny Jefri Rosa Suryantini Sagala, Ismaniar Hasanah Sarman, . Sesa, Junianto Siallagan, Tamauli Simanjuntak, Octo Erwin Sri Wahyuni Sri Wahyuni Srirahayu, Eka Suhaimi, . Sumimi, . Suryani Suryani Tampubolon, Ester Meilina Thursiana, Agustina Trigarcia Maleachi Randa Usman, Fadiilah H Wardyani, Yuli Wesly, Yonatan Wiwit, . Yundelfa, Mandria Yunita Purnama Sari Yunita Sabri