Institution
Sebelas Maret University
Education•Surakarta, Indonesia•
About: Sebelas Maret University is a education organization based out in Surakarta, Indonesia. It is known for research contribution in the topics: Population & Public health. The organization has 10901 authors who have published 10832 publications receiving 33057 citations. The organization is also known as: Universitas Negeri Surakarta & Universitas Sebelas Maret.
Topics: Population, Public health, Curriculum, Government, Critical thinking
Papers published on a yearly basis
Papers
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TL;DR: In this article, the Friedel-Crafts acylation of phloroglucinol over inexpensive heterogeneous silica sulphuric acid (SSA) catalyst via ultrasound-assisted (US) synthesis under solvent-free condition.
Abstract: Efforts toward the development of a straightforward greener Gram-scale synthesis of the antibiotic compound 2,4-diacetylphloroglucinol (DAPG) have been developed. This beneficial procedure was accomplished through the Friedel–Crafts acylation of phloroglucinol over inexpensive heterogeneous silica sulphuric acid (SSA) catalyst via ultrasound-assisted (US) synthesis under solvent-free condition. The influences of various parameters such as temperature, catalyst loading, and reaction time on the reaction performance were analysed using a multivariate statistical modelling response surface methodology (RSM). A high yield of DAPG (95%) was achieved at 60 °C after 15–20 min reaction with the presence of 10% (w/w) SSA as the catalyst. Column chromatography-free and a Gram scale-up reaction also exhibited the practical applicability of this newly developed protocol. The SSA catalyst was recovered and recycled up to 10 consecutive runs with no appreciable loss of activity. A plausible mechanism for the Friedel–Crafts acylation of phloroglucinol is proposed. Moreover, an environmental assessment has been carried out over this present method and compared with several established literature using the EATOS software and the Andraos algorithm to assess the consumption of the substrates, solvents, catalysts, and the production of coupled products or by-products. In addition, their energy consumptions were also determined. The data collected showed that the present method is the most promising one, characterised by the highest environmental impact profile against all the other reported methods. The physicochemical properties of the synthesised DAPG were assessed and exhibited reasonable oral bioavailability drug property as determined by Lipinski's rules.
12 citations
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TL;DR: In this article, the authors analyze the academic motivation of Papuan students at Sebel and find that the primary objective of learning engaged in higher education is to build graduate students who have great competence.
Abstract: The primary objective of learning engaged in higher education is to build graduate students who have great competence. This study aims to analyze the academic motivation of Papuan students at Sebel...
12 citations
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28 Oct 2018
TL;DR: In this article, a three-tier diagnosis instrument has been developed to identify the students' comprehension in students' concept and students' misconception in fluid concept, the instrument has a valid category with the Aiken validity index value> from table V (0.75).
Abstract: The purpose of this research was to know the validity and reliability of instrument three-tier diagnosis to identify the students’ misconception in fluid concept. The stages of development research that used in this research were (1) The first research and collecting information, (2) planning and designing of development (3) validity and product evaluation. The instrument of the test was tested on 98 students of 3 schools. The instrument has been developed and categorized effectively because it has a valid category with the Aiken validity index value> from table V (0.75) and the reliability of the instrument has a value of 0.96 with a high category. The instrument of three-tier test that developed was able to identify the students' comprehension in students' concept and students' misconception. There are 27,58% students comprehend the concept, 45,29% students did not comprehend the concept, 24,74% students showed that misconception and 2,36% students experienced errors
12 citations
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TL;DR: It is demonstrated that rotavirus is a major cause of diarrhea in hospitalized children in Indonesia and the need for inclusion of the rotav virus vaccine to the National Immunization Program in Indonesia is highlighted.
12 citations
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TL;DR: In this paper, a silylation-based surface modification of OPEFB waste has been successfully used and chemically pretreated as a powerful adsorbent for removing anionic and cationic dyes in aqueous media.
12 citations
Authors
Showing all 10990 results
Name | H-index | Papers | Citations |
---|---|---|---|
Kikuo Okuyama | 70 | 629 | 19639 |
Nicolino Ambrosino | 58 | 347 | 13669 |
Andrew W. Western | 46 | 225 | 11745 |
Ewa M. Goldys | 45 | 374 | 8173 |
Ferry Iskandar | 41 | 260 | 6412 |
Saiful Amri Mazlan | 28 | 263 | 2807 |
Muhammad Ibrahim | 28 | 219 | 3928 |
James M. Cummins | 26 | 53 | 2780 |
Agus Purwanto | 23 | 202 | 2083 |
Zainal Arifin | 21 | 160 | 1327 |
Muhammad Hanif | 21 | 210 | 1790 |
Agung Tri Wijayanta | 19 | 90 | 977 |
Ubaidillah | 19 | 124 | 1069 |
Sri Hartati | 18 | 327 | 2119 |
Josaphat Tetuko Sri Sumantyo | 18 | 215 | 1378 |