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All Journal Jurnal Hortikultura Indonesia (JHI) Indonesian Journal of Spatial Planning YASIN: Jurnal Pendidikan dan Sosial Budaya
Irsyad Maulana
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Agriculture, Biological Sciences & Forestry Engineering Social Sciences Other

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Respons fisiologi dan profile metabolit sekunder Lima Kultivar Rambutan (Nephelium lappaceum L.) terhadap Penambahan Cahaya Buatan LED (Light Emitting Diode): Physiology and Secondary Metabolite Profiles Responses of Five Rambutan Varieties (Nephelium lappaceum L.) through Addition of Artificial Light LED (Light Emitting Diode) Irsyad Maulana; Matra, Deden Derajat; Roedhy Poerwanto
Jurnal Hortikultura Indonesia (JHI) Vol. 13 No. 3 (2022): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jhi.13.3.180-186

Abstract

Rambutan (Nephelium lappaceum L.) is a fruit that is suitable for growing in the tropics area. However, information on physiological responses and secondary metabolite profiles on artificial light treatment has not been reported. This study aims to study the response of rambutan plants to the application of artificial light from LED (Light Emitting Diode). The study was conducted in the screenhouse nursery using a two-factor nested plot design, namely LED as light source and cultivar. The LED light sources used red, blue, and white with application duration for 21 hours while the cultivars used Sikoneng, Parakan, Cilebak, Gravel, and Garuda cultivars. The results showed that rambutan plants that were given additional blue LEDs contained higher chlorophyll and leaf as glucose and fructose compared to another treatments. The results of the secondary metabolite profiles showed the largest Neophytadiene compound found in the Parakan cultivar under LED red treatment. Meanwhile, the compound that has the greatest abundance in white LEDs is 1-Propene, 3-[(4-nitrobutyl)thio]. Keywords: chlorophyll, photosynthesis, glucose, light spectrum, secondary metabolite
Peningkatan Hasil Belajar Siswa melalui Pembelajaran Discovery Learning Muatan IPA Semester 1 pada Kelas VI SDN 195/VI Pematang Kancil Dandi Kurniawan; Irsyad Maulana; Silvi Ouralita; Gusnia Rindiani; Syafrida Dwi Hestiana; Nabila Nabila
YASIN Vol 2 No 6 (2022): YASIN: Jurnal Pendidikan dan Sosial Budaya
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/yasin.v2i6.694

Abstract

The implementation of teaching and learning activities can be carried out using various methods, models, approaches, and media according to the needs of teachers and students. Various methods, models, approaches, and media will make learning more meaningful, and the delivery of material will be easier. Based on the facts in the field there are still many educators who carry out a monotonous learning process, especially in science material, so that it seems boring to students such as at SDN 195/VI Pematang Kancil, so that student learning outcomes decrease. The main purpose of making this journal is to analyze related to improving student learning outcomes through discovery learning science content semester 1 in class VI SDN 195/VI Pematang Kancil. Writing this journal is based on a type of qualitative research using a literature review approach or literature review. Library review is an activity to examine various forms of relevant sources. The conclusion is that using the Discovery Learning learning model in Natural Education subjects at the elementary level is effective in improving student learning outcomes. The aspects in the indicators of student learning outcomes include cognitive, psychomotor, and also affective aspects.
KAJIAN POLA PEMANFAATAN RUANG TERBUKA PUBLIK TAMAN TIRTO AGUNG KOTA SEMARANG Wahjoerini Wahjoerini; Irsyad Maulana
Indonesian Journal of Spatial Planning Vol. 7 No. 1 (2026): VOLUME 7 NOMOR 1 MARET 2026
Publisher : Program Studi Perencanaan Wilayah dan Kota, Fakultas Teknik, Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/ijsp.v7i1.14442

Abstract

Taman Tirto Agung Kota Semarang merupakan salah satu ruang terbuka publik yang sangat strategis, keberadaannya dapat menampung beragam aktivitas dan interaksi sosial masyarakat. Hal ini dapat mendorong munculnya sektor informal (Pedagang Kaki Lima) yang memanfaatkan trotoar, jalan penghubung, dan akses masuk Taman Tirto Agung, sehingga terjadi ketidaksesuaian pemanfaatan ruang dengan fungsi zonanya. Penelitian ini bertujuan untuk mengkaji pola pemanfaatan terbuka ruang publik Taman Tirto Agung berdasarkan pelaku aktivitas, jenis pemanfaatan ruang, dan waktu aktivitas dengan menggunakan metode deskriptif kualitatif dengan pendekatan Behavioral Mapping melalui observasi, wawancara, dokumentasi, dan studi literatur pada hari kerja dan hari libur di sesi waktu pagi, siang, sore dan malam. Hasil penelitian menunjukkan bahwa tingkat kunjungan di Taman Tirto Agung lebih tinggi pada hari libur dibandingkan hari kerja di seluruh waktu pengamatan. Ruang terbuka publik Taman Tirto Agung dimanfaatkan untuk aktivitas aktif dan pasif oleh berbagai kelompok usia. Secara umum, pemanfaatan ruang telah sesuai dengan fungsi zonanya, meskipun masih ditemukan ketidaksesuaian pada waktu tertentu yang dapat menjadi bahan evaluasi ke depan.
Co-Authors Dandi Kurniawan Gusnia Rindiani Matra, Deden Derajat Nabila Nabila Roedhy Poerwanto Silvi Ouralita Syafrida Dwi Hestiana Wahjoerini Wahjoerini