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A seed rain community in a reforested post-agricultural field and adjacent secondary forest of Mount Papandayan Nature Reserve,West Java,Indonesia

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Journal of Forestry Research 2021年第3期32卷 1013-1023页

作者： Nuri Nurlaila Setiawan endah Sulistyawati School of Life Sciences and Technology Labtek XIInstitut Teknologi BandungJI.Ganesha 10Bandung 40132Indonesia

Understanding the mechanisms and barriers to the restoration of degraded land,especially post agriculture,will help provide protocols on effective ways of restoration into functional *** of the barriers in early stages of forest restoration is the arrival and availability of *** rain and factors affecting it(i.e.,distance to the forest edge,species diversity and surrounding vegetation)were measured in a reforested post-agricultural field and in an adjacent secondary *** g lm analysis was used on the seed rain community data and univariate lm analysis on the most abundant seed captured(i.e.,Schima wallichii(DC.)Korth.).After 8 months of seed rain collection,there was a total of 3596 seeds from eight tree *** were more abundant and more diverse in the secondary forest(74.9%,8 species)compared to the reforested field(24.1%,2 species).There was a limitation on seed dispersal in reforested field from the adjacent *** abundance of *** seeds determined by the dominance of adult trees(136 trees/ha in the forest and 115 trees/ha in the reforested field).Our study suggests,that after 7 years of planting,the reforested field has received limited seed rain and has not yet recovered.

关键词： Seed rain Montane tropical forest Post-agriculture succession Forest edge Multivariate analysis

Effect of Glycerol Concentration and Heating Treatment on Delignification and Bioethanol Production of Sago Dregs

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Journal of Energy and Power Engineering 2017年第11期11卷 679-686页

作者： Muhammad Luqman Hakim Erma Prihastanti endah Dwi Hastuti Laboratory of Biology of Plant Structure and Function Master Degree Program of Biology Department of Biology Faculty ofScience and Mathematies Diponegoro University Tembalang 50275 Indonesia

The purpose of this paper was to find the suitable condition between glycerol concentration and heating time treatment in the process of delignification and bioethanol production. The production of bioethanol consisted of 3 main stages： hydrolysis, fermentation, and distillation. The best result was obtained by a glycerol concentration of 90% and 15 minutes of heating time. It was used to delignify the lignocellulose biomass waste of the sago dregs originally containing 36.56% of lignin, 37.6% of or-cellulose and 39.51% of holocellulose. Then after being delignificated by 90% of glycerol concentration with 15 minutes heating time, the lignin content decreased to 19.3%, while a-cellulose increased to 39.64% and holocellulose also increased to 62.18%. After the delignification was successful, it was followed by the bioethanol production to produce 25% of bioethanol. This research is expected to overcome the problem of the energy crisis, food crisis, and environmental pollution by the sago dregs.

关键词： Delignification lignocellulose glycerol heating time bioethanol sago dregs.

Double Aortic Arch in Adolescence: A Case Report

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Open Journal of Pediatrics 2015年第2期5卷 99-103页

作者： Sri endah Rahayuningsih Rahmat Budi Kuswiyanto Mira Haryanti Evelyn Phangkawira Department of Child Health Faculty of Medicine Padjadjaran University/Hasan Sadikin General Hospital Bandung Indonesia

Introduction: Double aortic arch (DAA) is the most frequently encountered vascular ring malformation characterized by a complete encirclement of the trachea and esophagus by the aortic arch with a wide clinical spectrum. Objective: The aim of this study is to describe a case of DAA in adolesecents. Case Presentation: An 11-year-old boy was admitted for chronic productive cough which initially was diagnosed with pulmonary arterial hypertension. The final diagnosis was DAA which was established after chest computed tomography (CT) scan. Conclusion: Establishing a diagnosis of DAA in adolescents requires thorough understanding and clinical skills in performing diagnostic steps. The management of heart failure symptoms and other comorbidities is essential while preparing for its definite therapy.

关键词： Adolescent Double Aortic Arch

Visible Light Photoelectrocatalytic Degradation of Rhodamine B Using Ti/TiO2-NiO Photoanode

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Journal of Environmental Protection 2014年第17期5卷 1630-1640页

作者： Sayekti Wahyuningsih Candra Purnawan Teguh endah Saraswati Edi Pramono Ari Handono Ramelan Setyo Pramono Ari Wisnugroho Inorganic Material Research Group Department of Chemistry Faculty Mathematics and Natural Science Sebelas Maret University Surakarta Indonesia

The method of Ti/TiO2-NiO photoelectrode prepared by using sol-gel method continued by calcination process was introduced. The prepared TiO2-NiO film was observed with XRD and TEM. The anatase-rutile TiO2 was mainly on the prepared TiO2-NiO composite surface electrode. In addition to NiO, the composite also formed NiTiO3 that increased with increasing calcination temperature. Photoelectrocatalytic degradation of Rhodamine B (RB) using this electrode was investigated, and anodic potential and pH were optimized. RB degradation was investigated under different conditions, and it showed that photoelectrocatalytic degradation could achieve efficient and complete mineralization of organic pollutant. Through comparison of the photoelectrocatalytic oxidation using the Ti/TiO2-NiO electrode operated by single photoanode with the Ti/TiO2-NiO electrode operated by several photoanode, it was found that the photoelectrocatalytic efficiency of that by series photoanodes was higher. Additionally, photoelectrocatalytic system was performed at the several different photoelectrodes, which verified the higher photocatalytic activity compared with the single photoelectrode.

关键词： Ti/TiO2-NiO Photoelectrode Visible Light Photoelectrocatalysis Degradation Rhodamine B