16 results for "Muhammad Adlim"
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Journal Article
A Knowledge Analysis of the Implementation of STEM-Based Learning of Prospective Chemistry Teachers
STEM is one of the students' guides to have the mindset and ability to create an innovative and creative product that is useful for industry or everyday life. As prospective teachers, the students of chemistry education are expected to apply STEM-based learning at schools. Therefore, this study…
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Journal Article
Highly reusable chitosan-stabilized Fe-ZnO immobilized onto fiberglass cloth and the photocatalytic degradation properties in batch and loop reactors
The new design of the photocatalytic reactor is crucial to study for improving compatibility and scaling up the operation. A compatible loop photocatalytic reactor has been designed and used for rhodamine B decomposition. The photocatalysts were either ZnO or Fe-ZnO immobilized onto fiberglass…
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Journal Article
Immobilization of activated carbons on yarn as the adsorbent for dissolved iron in traditional well water
Excessive iron content in well water can degrade water quality and cause health problems such as indigestion, poisoning, intestinal damage, bleeding gums, and arthritis. Immobilization of activated carbon from refill water and coconut shells on yarns is an alternative adsorption method for reducing…
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Journal Article
Indonesian adolescents’ perspectives on smoking habits: a qualitative study
Abstract Background The prevalence of smoking among adolescents is high in Indonesia. Therefore, this qualitative research aimed to explore the perspectives of Muslim adolescents on smoking habits as a reference for developing effective prevention programs. Methods Three focus group discussions…
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Journal Article
A RANDOMIZED CONTROLLED TRIAL ON THE ISLAMIC-BASED PROGRAM USING FAMILY APPROACHES IN PREVENTING ADOLESCENTS’ SMOKING BEHAVIOR IN INDONESIA: A STUDY PROTOCOL
Background: Smoking is a significant problem especially among Indonesian adolescents. A number of smoking prevention programs have been developed and implemented, but most of them do not work significantly for the Indonesian adolescents who are mostly Muslim. Objective: The aim of this article is…
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Journal Article
Developing STEM-Based Student Worksheet to Improve Students’ Creativity and Motivation of Learning Science
The Student worksheet based on science, technology, engineering, and mathematics (STEM) has been prepared, validated, and tested on students at SMAN 5 Banda Aceh. The worksheet guided the students to design a salt-making tool with a sunlight-gathering mirror. The worksheet was developed using the…
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Journal Article
Immobilization of Sulfur from Different Precursors on Mini Rice-Husk-Ash Pellet Coated Chitosan Film and the Application for Mercury Vapor Uptake
Stabilizing elemental mercury using elemental sulfur has been a laboratory standard method but the studies in gas system are still growing. This study aims to explore the effect of different type immobilized sulfurs toward the mercury vapor uptake in a mini gas reactor. Sulfur powder, sulfur…
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Journal Article
Photocatalytic Degradation of Skim-Latex-Vapor Odor Using Iron-Doped Zinc Oxide
The photocatalytic degradation of the vapor odor of skim natural rubber latex, which is composed of volatile organic compounds (VOCs-NR), was conducted using iron-doped zinc oxide (Fe-ZnO) photocatalyst nanoparticles. The research objectives were to study the photocatalyst, to develop the…
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Journal Article
Comparison of antibacterial properties between chitosan stabilized silver and zinc oxide nanoparticles immobilized on white silica beads
Most preparation of both silver (Ag) and zinc oxide (ZnO) nanoparticles (NPs) was relatively complicated. We proved a more straightforward method not only in the nanoparticle synthesis but also in their immobilization on the solid support. Since both the metal nanoparticles have antibacterial…
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Journal Article
Preparation and characterization of indoor heat blockage panel composites made of polyurethane-hybrid-foam-concrete and rice-husk-ash
The preferable properties of indoor heat blockage material for tropical environments are blocking outside heat without absorbing and storing it inside the blockage material, therefore studying the component and the composite properties are crucial. This study, therefore, aims to prepare and…
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Journal Article
Understanding Pre-Service Teachers’ Conceptual Difficulties in Learning Newman Projections
Challenges in mastering chemistry content among pre-service chemistry teachers remain a critical concern in teacher education institutions. This study aims to analyze the most difficult concepts and the underlying conditions contributing to students' failure in mastering specific chemistry courses…
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Journal Article Full text
Chemical, Physical and Mechanical Properties of Hybrid Foam Concrete Panels Made of Polyurethane and white Portland Cement
Indoor heat blockage panels are important wall material for energy saving and room convenience, especially in tropical regions. The panels are prepared from hybrid foam concrete made of various percentages of polyurethane (PUR), and white Portland cement (WCM). The properties were studied based on…
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Journal Article
Simple Preparations and Characterizations of Activated-Carbon- Clothes from Palm-Kernel-Shell for Ammonia Vapor Adsorption and Skim-Latex-Odor Removal
This study explored a simple preparation and characterization of the activated carbon and cloth from the palm kernel shell and compared it to the commercial-water-filter-carbon specification. A new pyrolysis chamber that is easily scaled up using the palm kernel shell itself as a heat source was…
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Journal Article
Reusability and regeneration of antibacterial filter immobilized zinc oxide nanoparticles on white silica gel beads coated with chitosan
Most antibacterial air filters show good performance for single-use. However, reusable ones are also essential for reducing cost, emergency use, and environmental reduction waste, which are still less attention by researchers. This study investigated the reusability and regeneration capabilities of…
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Journal Article
Mushroom oils: A review of their production, composition, and potential applications
This review delves into the world of mushroom oils, highlighting their production, composition, and versatile applications. Despite mushrooms' overall low lipid content, their fatty acid composition, rich in essential fatty acids like linoleic acid and oleic acid, proves nutritionally significant…
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Journal Article
Immobilization Method of ZnO Nanoparticles on Nylon Monofilament Assembled as a Bottle Brush Model and Photocatalytic Activities on Rhodamine B Decomposition
Problems in light penetration, separation, reusability, and less adaptable reactors remain challenging in photocatalysis, especially when using slurry photocatalysts for wastewater decomposition. The immobilization technique of photocatalysts on compatible support and the reactor setup is crucial…