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1st Journal of Environmental Science and Sustainable Development Symposium, JESSD 2020

作者： Ismail, Yunita Environmental Engineering Study Program Faculty of Engineering President University 17550 Indonesia

The utilization of natural resources and the environment to improve the community's welfare is an unavoidable choice. The environment used should still protect the environment. This study aims to provide an overview of the company's efforts to implement its obligation to preserve the environment using a different type of Corporate Social Responsibility (CSR) program, which were community development and green marketing. The method used was a survey by taking the population at two different places, Jakarta and Pangkal Pinang. The sampling technique was done using a purposive method to obtain samples that meet the company's CSRreceiver's criteria. The number of the respondent from the first population is 44 respondents and from the second population is 100 respondents. Data analysis was done using simple and multiple linear regression. The results showed that CSR's implementation had a significant impact on education, health, and poverty reduction. CSR activity by the company was accepted by society activities directly in the form of counseling and mentoring. CSR activities conducted on marketing activities by implementing Green Marketing found that pricing and promoting an environmentally sound positive impact on consumers' willingness to buy back the product. In contrast, the product is not significantly influential. © Published under licence by IOP Publishing Ltd.

关键词： Sustainable development

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Effective preprocessed thin blood smear images to improve malaria parasite detection using deep learning 2

Effective preprocessed thin blood smear images to improve ma...

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2nd Annual Conference of Science and Technology, ANCOSET 2020

作者： Swastika, W. Kristianti, G.M. Widodo, R.B. Informatics Engineering Study Program Universitas Ma Chung Malang Indonesia

Malaria can be difficult to detect from thin blood smears. Image recognition methods such as convolutional neural network can be used to detect malaria, but the training process takes a long time. Previous research created a new architecture and compares it to several other architectures such as VGG-16 and ResNet. The effect of preprocessing is analyzed in this research. VGG-16, ResNet, and the custom architecture created by the previous research are being used in this study. The preprocessing methods being analyzed in this research include gray-world normalization and comprehensive normalization. The highest accuracy improvement per epoch (0.5256% using ResNet-50 and 0.0352% using custom architecture) is achieved through gray-world normalization, that also improves final accuracy (90.1% using ResNet-50 and 93.1% using custom architecture) when compared to other methods with the same epochs for ResNet and custom architecture. © Published under licence by IOP Publishing Ltd.

关键词： Image recognition

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Epilithic biofilm as a potential biomonitor for microplastics contamination in Brantas River of Malang City, Indonesia

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Case Studies in Chemical and Environmental engineering 2025年 11卷

作者： Anggayasti, Wresti L. Pramudia, Zulkisam Susanti, Yogita A.D. Al Zamzami, Ilham Misbakudin Moehammad, Khibar Syiar Wardana, I Nyoman Gede Kurniawan, Andi Environmental Sciences Study Program of Universitas Brawijaya Malang Indonesia Aquaculture Study Program Faculty of Fisheries and Marine Science Universitas Brawijaya Malang Indonesia Aquatic Resources Management Study Program Faculty of Fisheries and Marine Science Universitas Brawijaya Malang Indonesia Mechanical Engineering Department Faculty of Engineering Universitas Brawijaya Malang Indonesia

Despite being an efficient bioremediation agent, aquatic biofilm's usefulness as a biomonitor has not been explored extensively. This study disclosed the potential of epilithic biofilm as biomonitor by comparing its metagenomics with water quality parameters and microplastic count in Brantas River. Metagenomics showed the epilithic biofilm was dominated by Exiguobacterium, which recognizes and degrades microplastics, along with Rhodobacterium and Rhizobiales. For the first time, biofilm microbes and their respective roles were discovered to correspond to the total microplastic counts in comparison with BOD as the only transgressing physicochemical parameter. Thus, epilithic biofilm is a potential biomonitor for riverine microplastic contaminations. © 2024 The Author(s)

关键词： Epilithic biofilm Metagenomics Microplastic biomonitor River pollution Water physicochemical parameters

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Redline Stealer Malware Analysis with Surface, Runtime, and Static Code Methods

Redline Stealer Malware Analysis with Surface, Runtime, and ...

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Cryptography, Informatics, and Cybersecurity (ICoCICs), IEEE International Conference on

作者： Fahmi Ramadan Ira Rosianal Hikmah Cybersecurity Engineering Study Program National Cyber and Crypto Polytechnic Bogor Indonesia

Data is becoming a new resource with high value, so many parties are interested in owning it. There are many ways to take it, one of which is planting and spreading malware known as stealer malware. Over time, malware has become more sophisticated, targeted, complex, commercialized, and scalable for a wider range of attacks. This makes malware analysis an important job requiring a lot of time, expertise, and extensive knowledge, both by individuals and teams of analysts. This study will analyze stealer malware using three analytical methods: surface, runtime, and static code. In malware analysis using the surface method, malware is tested by scanning by antivirus, hashing malware, and package/obfuscated detection, followed by Portable Executable analysis and malware sandbox analysis. In the runtime method, the malware is run for further observations of registry changes, DNS activity observations, and network data communication activities. In research using the static code analysis method, tests were carried out to find the relationship between the use of linked libraries and functions, string search as a guide for working steps of malware, and debugging malware to explore deeper into malware behaviour. The results obtained are information about the characteristics of the malware stealer and its impact on the test environment.

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The developing hairpiece module of the students at vocational secondary schools 6

The developing hairpiece module of the students at vocationa...

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6th International Conference on Technology and Vocational Teachers, ICTVT 2020

作者： Marliati, N. Agrevinna, M. Cosmetology Study Program Faculty of Engineering Universitas Negeri Yogyakarta Indonesia

This study aims to analyze the validity and effectiveness of the hairpiece module. The research method used is development or known as the Research and Development method. The stages in the research process are the analysis, design, development, implementation, and testing stages. Tests carried out in the form of validation were carried out by expert judgments or media and material experts, then the media was tested by students. The results of this study get the assessment of media experts in the very feasible category and material experts in the very feasible category. The results of student trials in small group trials were in the good category and large group trials were included in the good category. The analysis of the pre-test and post-test results showed a gain of 0.53 in the experimental group with moderate criteria and a gain of 0.42. © Published under licence by IOP Publishing Ltd.

关键词： Students

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Genomic and transcriptomic dissection of Theionarchaea in marine ecosystem

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Science China(Life Sciences) 2022年第6期65卷 1222-1234页

作者： Mingwei Cai Changhai Duan Xinxu Zhang Jie Pan Yang Liu Cuijing Zhang Meng Li Archaeal Biology Center Shenzhen Key Laboratory of Marine Microbiome EngineeringInstitute for Advanced StudyShenzhen UniversityShenzhen 518060China SZU-HKUST Joint PhD Program in Marine Environmental Science Shenzhen UniversityShenzhen 518060China

Theionarchaea is a recently described archaeal class within the *** it is widely distributed in sediment ecosystems,little is known about its metabolic potential and ecological ***,we used metagenomics and metatranscriptomics to characterize 12 theionarchaeal metagenome-assembled genomes,which were further divided into two subgroups,from coastal mangrove sediments of China and seawater columns of the Yap *** analysis revealed that apart from the canonical sulfhydrogenase,Theionarchaea harbor genes encoding heliorhodopsin,group 4[NiFe]-hydrogenase,and flagellin,in which genes for heliorhodopsin and group 4[NiFe]-hydrogenase were transcribed in mangrove ***,the theionarchaeal substrate spectrum may be broader than previously reported as revealed by metagenomics and metatranscriptomics,and the potential carbon substrates include detrital proteins,hemicellulose,ethanol,and CO_(2).The genes for organic substrate metabolism(mainly detrital protein and amino acid metabolism genes)have relatively higher transcripts in the top sediment layers in mangrove *** addition,co-occurrence analysis suggested that the degradation of these organic compounds by Theionarchaea might be processed in syntrophy with fermenters(e.g.,Chloroflexi)and ***,these observations expand the current knowledge of the metabolic potential of Theionarchaea,and shed light on the metabolic strategies and roles of these archaea in the marine ecosystems.

关键词： Theionarchaea metagenome metatranscriptome metabolic potentials ecological roles

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Formulation of pomade with atisiri oil pandan wangi leaves (pandanus amaryllifolius roxb.) 6

Formulation of pomade with atisiri oil pandan wangi leaves (...

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6th International Conference on Technology and Vocational Teachers, ICTVT 2020

作者： Siregar, I.P. Marliati, N. Cosmetology Study Program Faculty of Engineering Universitas Negeri Yogyakarta Indonesia

This research aims to: 1) know the formulation of pomade making from aromatic pandan wangi leaf essential oil, 2) know the characteristics of pomade from the essential oil of pandan wangi leaves, and 3) know the quality of pomade from the essential oil of fragrant pandan leaves, and 4) the anti-fungal activity of pomade from the essential oil of pandan wangi leaves. Research methods used by research and development (R&d) models. Formulation of pomade manufacture of pandan wangi leaf essential oil is carried out based on the results of research that produces a stable formula that is pomade with the appropriate quality SNI with the base of pomade type oil based and not petrol based with a concentration of 34% of the total weight of pomade. Pomade formula is added to the essential oil of pandan wangi leaves with different concentrations of 2.5% (formula 1), 5% (formula 2) and 7.5% (formula 3). The characteristics and quality of pomade are known from organoleptic and hedonic tests that 47% of respondents strongly agree with pomade has the aroma of essential oil of pandan wangi leaves, 52% of respondents strongly agree with the color of pomade in dark green, 45% of respondents strongly agree with the texture of pomade very smooth without any granules, the respondent's response after pomade is on a smooth impression as much as 90.56% and the impression is moist as much as 90.00%. Formula 1 to formula 3 provide homogeneous results. Formulas 1 through 3 have a pH balance with pH range of hair and oil on the scalp which is 5.5 between pH 4.5 -5.5. The largest antifungal activity is in formula 3 (essential oil content 7.5%) with an inhibithor zone diameter of 37 mm. This indicates that the greater the concentration of pandan wangi leaf essential oil, the stronger the antifungal activity against niger's Aspergillus. © Published under licence by IOP Publishing Ltd.

关键词： Essential oils

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Impacts Due to Foundation Piling Work 3

Impacts Due to Foundation Piling Work

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3rd Borneo International Conference on Applied Mathematics and engineering 2020, BICAME 2020

作者： Sari, O.L. Saputra, A.A.I. Subhakti, A. Putri, A.P. Khala, C.C.S. Civil Engineering Study Program Kalimantan Institute of Technology Balikpapan Indonesia

The foundation erection work is a job that has a high enough complexity. In making the decision of the type of pile and the method of erection, practitioners have many choices with various conditions in the field. Decision making will result in an impact during the foundation erection process. This study aims to analyze what are the impacts caused by the choice of pole type and piling method. A preliminary survey was conducted together with four experts to verify and reduce the 11 impact indicators obtained from the literature study, obtained 6 impact indicators which are quite relevant according to experts and will be used in the questionnaire survey. The questionnaire survey was conducted on 45 practitioner respondents who had carried out foundation building work. Data analysis validity and reliability tests were carried out on the questionnaire data. It was concluded that there were three main impacts that occurred due to the choice of the type of foundation pile and the piling method, namely environmental impact, economic impact, and social impact. The main impacts are broken down into six impacts including the use of fuel, ground vibration, fuel and material costs, equipment and labor costs, workplace safety, and noise. © Published under licence by IOPPublishing Ltd.

关键词： Piles

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The potency of metakaolin as addition material in high strength self-compacting concrete to increase Modulus of Rupture (MOR) in rigid pavement application 9

The potency of metakaolin as addition material in high stren...

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9th engineering International Conference, EIC 2020

作者： Wibowo, W. Safitri, E. Setyawan, A. Muslih, Y. Mediyanto, A. Setiawan, B. Syaufina, T.R. Civil Engineering Study Program Universitas Sebelas Maret Surakarta Indonesia

This study focused on the modulus of rupture (MOR) for high strength self-compacting concrete (SCC) using varied metakaolin (MK) composition. The MOR significantly contributes to the resilience and mechanical performance of the rigid pavement, and is enhanced by modifying the regular concrete material. In addition, the MK is known to be potentially economical and occurs abundantly as natural resources. Plain concrete beams with dimensions 400 x 100 x 100 mm3, were tested in the laboratory in an effort to measure the MOR from varied MK composition for each specimen or modified concrete type. The result showed the MOR increase is exclusively as a result of additional metakaolin. Also, the newly modified material was proven to offer more advantages when applied as rigid pavement material. Furthermore, the analytical laboratory result showed the optimum MK dosage was estimated at 20% of the binder weight. This subsequently enhances the MOR by 17.28% compared to non-MK concrete. © Published under licence by IOP Publishing Ltd.

关键词： Self compacting concrete

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Effectiveness of typha latifolia for phytoremediation of cadmium in acid mine drainage 2

Effectiveness of typha latifolia for phytoremediation of cad...

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2nd International Conference on Sciences and Technology Applications, ICOSTA 2020

作者： Putri, Maharani Permata Moersidik, Setyo Sarwanto Environmental Engineering Study Program University of Indonesia Depok16424 Indonesia

One evidence of environmental pollution is the formation of acid mine drainage. In passive processing systems, the technique that is often used is phytoremediation because the costs incurred for this method are affordable and take advantage of natural ecosystems. In this study, the effectiveness of Typha latifoliain neutralizing acidity and removing heavy metal such as cadmium (Cd) is determined. Cadmium is one of the heavy metals that can be found in nickel, gold, and copper mining area. The acid mine drainage used in this study was artificially made with a concentration of 5and 10 mg/L with a pH of *** testing was carried out using a pH meter and the accumulation concentration of Cd was analyzed using Atomic Absorption Spectrophotometer (AAS). The results revealed that Typha latifolia planted on soil without fertilizer could increase the pH of acid mine drainage containing heavy metal Cd from 4 to ± 7 within 28 *** latifolia can reduce the concentration of Cd in artificial acid mine drainage with the removal efficiency of 95 - 96%. The value of the Bioconcentration Factorin Typha latifolia exposed to acid mine drainage with concentrations of Cd 5 and 10 mg/L are > 1000, which means that this plant has the potential to be a heavy metal hyperaccumulator in phytoremediation. © Published under licence by IOP Publishing Ltd.

关键词： Cadmium

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