24 results on '"Taufik ANWAR"'
Search Results
2. A Path Model of Factors Associated with Hypertension and Disease: Analysis of Indonesian Basic Health Survey Year 2018
- Author
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Didik HARIYADI, Widyana Lakshmi Puspita, Taufik ANWAR, and Slamet WARDOYO
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heart disease ,hypertension ,path analysis ,Medicine ,Medicine (General) ,R5-920 - Abstract
Non-communicable diseases are estimated to account for 73% of all deaths in Indonesia, and cardiovascular disease contributes 35%. Unhealthy dietary behavior leads to several NCDs, such as Diabetes Mellitus, obesity, hypertension, cardiovascular disease, and stroke. This cross-sectional study used secondary data from the Indonesian Basic Health Survey Year 2018. The study selected 10,171 samples aged ≥15 years from West Borneo Province. The dependent variable was coronary disease. The independent variables were hypertension, age, gender, education, smoking, vegetables, fruit consumption, fat intake, alcohol consumption, instant noodles consumption, soft drink consumption, physical activity, and residence. A path analysis was conducted data analysis. The coronary disease was directly increased by hypertension (b=1.19; 95% CI=0.90 to 1.48; p
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- 2024
- Full Text
- View/download PDF
3. Phytoremediation as a Barrier to Heavy Metal Distribution in Open Dumping Landfill in Peatlands
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Marsum Marsum, Taufik Anwar, Slamet Slamet, Khayan Khayan, and Slamet Wardoyo
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phytoremediation ,barrier ,heavy metal ,open dumping landfill ,Environmental technology. Sanitary engineering ,TD1-1066 ,Environmental sciences ,GE1-350 - Abstract
Landfills with the open dumping method cause many environmental pollution problems, such as pollution, soil, surface water, and groundwater. Pollution cleaning technology (remediation) to reduce the harmful effects in the locations contaminated with heavy metals can be implemented by means of several methods, including using phytoremediation as a barrier to heavy metal contamination in order to preventing contamination distribution to the environment. Ferns (Phytoremediation) on the side of the Open Dumping Landfill were investigated as phytoremediation, inhibiting the distribution of heavy metals into the environment. The descriptive-analytic research method was used to analyze the ability of ferns in an open dumping landfill in peatland areas as a barrier to metal contamination distributed to the environment. The results show that ferns can bind heavy metals, such as Hg and Pb, produced from open dumping landfill activities to prevent the distribution of heavy metals to the environment around the landfill. Ferns are able to block the distribution of heavy metals into the environment, especially Pb and Hg. The ability of ferns to become potential plants in peatland areas requires further testing of other heavy metals.
- Published
- 2022
- Full Text
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4. Health Education to Reduce Helminthiasis: Deficits in Diets in Children and Achievement of Students of Elementary Schools at Pontianak, West Kalimantan
- Author
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Widyana Lakshmi Puspita, Khayan Khayan, Didik Hariyadi, Taufik Anwar, Slamet Wardoyo, and Bagus Muhammad Ihsan
- Subjects
Infectious and parasitic diseases ,RC109-216 - Abstract
Worms are still a serious problem for poor and developing countries. Children, especially school-age children, are more at risk of infection. Efforts need to be made to prevent the effects of worms. Prevention can be done through a promotive approach. This observational study with a pre-posttest and cross-sectional approach is aimed at evaluating the effectiveness of health education on healthy and helminthic behavior and analyzing the impact of helminthiasis on the deficit in the diet and children’s learning achievement. The number of samples is 60 students from five grade 3 and 4 elementary schools in North Pontianak, West Kalimantan. The sampling technique was carried out by proportional random sampling. Worm infection in elementary school students was 16.7%, anemia was 55%, and learning achievement scores were less than the average grade of 55%. There was a significant difference in health counseling towards a decrease in the worm number (p=0.046). There was a significant relationship between healthy living behavior and helminthiasis (p=0.005). There was a significant relationship between helminthiasis and anemia (p=0.017). There is a relationship between helminthiasis and learning achievement in elementary school children (p=0.017). There is a relationship between anemia and learning achievement (p=0.005). It is necessary for public health centers to provide treatment services for worms and health education about the effects of helminthiasis on health and learning achievement. The school should provide hand washing facilities in schools, and parents should play an active role in improving clean and healthy lifestyle habits at home.
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- 2020
- Full Text
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5. KAMPER KARBON AKTIF MENURUNKAN KEPADATAN BAKTERI UDARA DI RUMAH SAKIT UNIVERSITAS TANJUNGPURA
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Aryanto Purnomo and Taufik Anwar
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Bakteri ,Kamper ,Karbon Aktif ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract: Camphor-Active Carbon To Reduce Air Bacteria Density In Tanjungpura University Hospital. The risk of microbial contamination by air in the medical ward may occur during the process of wound care, replacing bandages, injection and infusion. The development of airborne bacteria in the medical ward can cause nosocomial infection to patients. Therefore it is necessary to reduce the risk of air bacteria exposure by using activated carbon as the adsorbent. The general purpose of this research was to determine the ability to activate carbon camphor by lowering the density of air bacteria in the medical ward. The design of this research is pre and post group design. The research process was repeated six times for each active camphor carbon dose. Statistical analysis techniques using the Wilcoxon Signed Rank test and Kruskal Wallis. The results showed that there was the significant difference in the density of air bacteria before and after given camphor-activate carbon (p = 0.000). There was a difference in the density of air bacteria with doses variation of camphor-activate carbon (p = 0.003) and there was no difference air bacteria density according to the class of medical ward in Tanjungpura University Hospital (p = 0.311). The conclusions, of this research, is that there is the difference of bacterial density to dose variation, except bacteria density according to the Class of medical ward. Abstrak: Kamper Karbon Aktif Menurunkan Kepadatan Bakteri Udara Di Rumah Sakit Universitas Tanjungpura. Resiko kontaminasi mikroba oleh udara pada ruang perawatan dapat terjadi pada saat proses perawatan luka, penggantian perban, injeksi dan pemasangan infus. Perkembangan bakteri udara di ruang perawatan dapat memicu terjadinya infeksi nosokomial bagi pasien. Oleh karena itu perlu upaya pengendalian dengan mengurangi resiko paparan bakteri udara dengan memanfaatkan karbon aktif sebagai adsorben. Tujuan penelitian ini adalah untuk mengetahui kemampuan kamper karbon aktif dalam menurunkan kepadatan bakteri udara di ruang perawatan. Desain penelitian ini adalah pre and post group design. Proses penelitian diulangi sebanyak 6 kali untuk masing-masing dosis kamper karbon aktif. Teknik analisis menggunakan uji statistic Kruskal Walls. Hasil penelitian menunjukkan bahwa ada perbedaan densitas bakteri udara sebelum dan sesudah diberi kamper berkarbonaktif (p=0.000). Ada perbedaan densitas bakteri udara dengan variasi dosis kamper karbon (p=0.003) dan tidak ada perbedaan densitas bakteri udara berdasarkan kelas Ruang Perawatan di Rumah Sakit Tanjungpura (p=0.311). Kesimpulan dari penelitian ini adalah ada perbedaan densitas bakteri terhadap variasi dosis, kecuali perbedaan bakteri udara berdasarkan Kelas Ruang Perawatan.
- Published
- 2017
6. Active Carbon Respiratory Masks as the Adsorbent of Toxic Gases in Ambient Air
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Khayan Khayan, Taufik Anwar, Slamet Wardoyo, and Widyana Lakshmi Puspita
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Toxicology. Poisons ,RA1190-1270 - Abstract
The air quality that is increasingly carrying out pollution as a result of pollution by human activities is of concern to the world, both developed and developing countries. The impact of air pollution is unavoidable, especially for health. Several efforts have been made to suppress the occurrence of pollution starting from the control of sources, media, and protective efforts in human beings. Focusing on protective efforts, this study was carried out by designed respiratory masks capable of adsorbing toxic gases in ambient air by utilizing mask materials on the market with the addition of activated carbon; the study was carried out with an experimental approach. Testing distinguishes the ability of cotton, spunbond, meltblown, and activated carbon as a respiratory mask to absorb toxic gases such as COx, NOx, and SOx. Test statistics are using the ANOVA test with a confidence level of 95%, α = 5%. The results show that combining activated carbon, spunbond, and meltblown is more effective compared to respiratory masks made from spunbond and meltblown (surgical masks) in absorbing toxic gases.
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- 2019
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7. EFEKTIFITAS PASIR DAN KARBON AKTIF DALAM MENURUNKAN KEKERUHAN DAN TIMBAL PADA AIR HUJAN
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Khayan Khayan and Taufik Anwar
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Timbal, Kekeruhan, Pengolahan Air Hujan ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract: The Effectiveness of Sand And Activated Carbon For Lowering Turbidity Tubes And Pablum On Roof Rain Water. This research was aimed to make filtration tube by using sand, shells and coconut shell activated carbon, also analyze its effectiveness in reducing Pb and turbidity of rain water. This experimental research uses pre and post-test design with control. The results show that level of lead (Pb) pre-treatment about 131.7 μg/l and 20 NTU of turbidity. Level of Pb post-treatment was 0.71 ug / l and 5.66 NTU of turbidity with 99.4% effectiveness in decreasing lead (Pb) and 72% effectiveness in decreasing turbidity. Results of statistical analysis showed that there were a differences levels of Pb and turbidity before and after treatment (p = 0.00) Abstrak: Efektivitas Pasir dan Karbon Aktif Dalam Menurunkan Kekeruhan dan Timbal Pada Air Hujan.Tujuan penelitian yaitu untuk menganalisis efektifitas pasir dan karbon aktif dalam menurunkan timbal dan kekeruhan pada air hujan. Jenis penelitian adalah eksperimen dengan rancangan pre and post test with control design. Hasil penelitian sebelum perlakuan menunjukkan kadar timbal (Pb) 131,7 μg/l dan kekeruhan sebesar 20 NTU. Setelah perlakuan kadar Pb sebesar 0,71 μg/l dan kekeruhan 5,66 NTU dengan efektivitas penurunan timbal (Pb) 99,4% dan kekeruhan, 72%. Hasil analisis statistik menunjukkan adanya perbedaan kadar Pb dan kekeruhan sebelum dan sesudah dilakukan pengolahan (p= 0,00).
- Published
- 2016
8. PAJANAN DEBU KAYU (PM10) TERHADAP GEJALA PENYAKIT SALURAN PERNAFASAN PADA PEKERJA MEUBEL SEKTOR INFORMAL
- Author
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Aryanto Purnomo and Taufik Anwar
- Subjects
kayu, pajanan debu, penyakit, pekerja ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract: Exposure To Wood Dust (PM 10) And Respiratory Disease Symptoms In Meubel Informal Sector Workers. The aim of this study was to determine the relationship of exposure to wood dust (PM10) and symptoms of the respiratory disease on furniture informal sector workers. This study was an observational method with cross-sectional approach. The study population that all workers in furniture in 4 districts of Pontianak by 25 furniture industry. The research sample as many as 127 people. Chi-square test is used to determine the relationship of the independent variables with the dependent variable in the form of categorical and Mann-Whitney test to determine the relationship of the independent variables in the form of numerical categorical dependent form. Multiple logistic regression testing is used to determine the risk factors that cause the symptoms of respiratory disease. the results showed that the value of p=0,011 that there is a relationship between the concentration of wood dust (PM10) with symptoms of the respiratory disease after being controlled by the characteristic of the worker and the work environment factors. Abstrak : Pajanan Debu Kayu (PM10) Terhadap Gejala Penyakit Saluran Pernafasan Pada Pekerja Meubel Sektor Informal. Tujuan penelitian yaitu untuk mengetahui hubungan pajanan debu kayu (PM10) terhadap gejala penyakit saluran pernafasan pada pekerja meubel sektor informal. Metode penelitian ini bersifat observasional dengan pendekatan Cross sectional. Populasi penelitian yaitu semua pekerja di meubel di 4 wilayah kecamatan kota Pontianak sebanyak 25 industri meubel. Sampel penelitian yaitu sebanyak 127 orang. Uji Chi-square digunakan untuk mengetahui hubungan variabel independen dengan variabel dependen yang berbentuk kategorik dan Uji Mann-whitney untuk mengetahui hubungan variabel independen yang berbentuk numerik dengan dependen yang berbentuk kategorik. Sedangkan uji Regresi Logistik Ganda digunakan untuk mengetahui faktor-faktor risiko yang menyebabkan terjadinya gejala penyakit saluran pernafasan. Hasil penelitian menunjukkan bahwa nilai p=0,011 bahwa ada hubungan antara konsentrasi debu kayu (PM10) dengan gejala penyakit saluran pernafasan setelah dikontrol oleh karakteristik pekerja dan faktor lingkungan kerja.
- Published
- 2015
9. The Instrumentation of Standard Diet Food Portions for Diabetes Mellitus
- Author
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Widyana Laksmi Puspita, Khayan Khayan, Didik Hariyadi, Taufik Anwar, and Slamet Wardoyo
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Automotive Engineering - Abstract
The right diet is needed in the treatment of Diabetes Mellitus. The dietary standards used must be by their nutritional adequacy. This study aims to determine the effectiveness of the use of aluminum cup serving tools for standard measuring devices in the Diabetes mellitus diet. The portion measurement instrument is designed by 1P, 1 1 / 2P, and 2P standards. The study was conducted at a laboratory scale in 2018 with a quasi-experimental approach. Data analysis uses Analysis of Variance (ANOVA) with α = 5%. The results show that the average effectiveness of 1P portion accuracy is 99%, 1½ P for 101%, and 2P about 99.6%. There was no difference in effectiveness compared to using a scale and there were differences in measurements using bowls and spoons. Standard portion of 1P measuring instruments 114% effectiveness bowl and 113% spoon, standard 1½ P portion for 107% bowl and 105% spoon, and 2P standard portion for measuring the effectiveness of the portion of the bowl is 104% and 103% spoon. Using a measuring device Aluminum cup portions, both 1P, 1.5P, and 2P parts can determine the value of food and nutritional adequacy standards of patients with Diabetes Mellitus.
- Published
- 2022
10. Domestic wastewater treatment using a combination of peat and coconut shells
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Taufik Anwar, Slamet Slamet, and Slamet Wardoyo
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- 2022
11. Analysis of Disaster Mitigation in IPAS Subject of High School Phases under Merdeka Belajar Concepts
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Novita, Mega, primary, Nurohmah, Amin, additional, Ma'arif, Syamsul, additional, Anh Huynh Nguyen, Tam, additional, Kusumo, Haryo, additional, Marlina, Dian, additional, and Taufik Anwar, Muhammad, additional
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- 2022
- Full Text
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12. Analysis of Disaster Mitigation in IPAS Subject of High School Phases under Merdeka Belajar Concepts
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Mega Novita, Amin Nurohmah, Syamsul Ma'arif, Tam Anh Huynh Nguyen, Haryo Kusumo, Dian Marlina, and Muhammad Taufik Anwar
- Abstract
Indonesia’s geographical condition is vulnerable to geological changes and prone to natural disasters. The Indonesian Government has made various efforts to reduce disaster risk by developing disaster-safe education units. Disaster education will be effective if it is integrated into the curriculum in the school subjects such as social studies from an early age. This study aims to provide ideas for implementing disaster mitigation learning for high school students based on the concept of Merdeka belajar in the digital age. To better understand disaster preparedness under the concepts of Merdeka belajar, we thoroughly examined the relevant databases. It was carried out within the education framework put out by Ki Hadjar Dewantara (1889–1959), Johann Friedrich Herbart (1776–1841), and Jan Komensky (1592-1670). Given that Indonesia has at least 13 disaster threats whose risks vary depending on the region, it is crucial to understand the local wisdom in disaster mitigation. This content is available in high school phases’ natural and social sciences subjects (ilmu pengetahuan alam dan sosial, IPAS). This research is crucial to successfully improve the teaching-learning quality to meet the needs of the Pancasila student profile. Keywords: disaster mitigation, IPAS, high school, merdeka belajar, digital learning
- Published
- 2022
13. Perbedaan Penggunaan Komposter An-Aerob dan Aerob Terhadap Laju Proses Pengomposan Sampah Organik
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null Suharno, Slamet Wardoyo, and Taufik Anwar
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Masalah sampah pasar tradisional sebenarnya tidak terlalu susah, namun juga tidak sederhana, karena memiliki karakteristik yang sedikit berbeda dengan sampah dari perumahan. Komposisi sampah pasar tradisional lebih dominan sampah organik yang dapat di daur ulang menjadi kompos atau pupuk organik. Agar proses pengomposan dapat berlangsung lebih cepat diperlukan alat biakan berupa komposter dan menambahkan aktivator atau biang kompos. Tujuan penelitian ini yaitu enganalisis perbedaan penggunaan Komposter An-aerob dengan Komposter Aerob terhadap laju proses pengomposan sampah organik. Penelitian menggunakan metode eksperimen semu (quasi experiment), antara perlakuan (komposter Aerob) dengan kontrol (komposter An-aerob). Hasil menunjukkan kecepatan waktu pematangan kompos pada parameter perubahan warna bahan dan bau bahan kompos dengan komposter anaerob rata-rata kecepatan kematangan kompos sebesar 10,22 hari, sedangkan dengan komposter aerob rata-rata kecepatan kematangan kompos sebesar 9,89 hari. Berdasarkan uji statistik Wilcoxon Signed Rank Test dengan α 5%, untuk parameter warna diperoleh tingkat signifikansi (p value) sebesar 0,006, sedangkan berdasarkan parameter bau diperoleh tingkat signifikansi (p value) sebesar 0,003. Dengan demikian ada perbedaan yang bermakna antara proses pengomposan dengan menggunakan komposter anaerob dengan komposter aerob
- Published
- 2021
14. Z. mauritiana Leaves as Larvasidal Alternatives
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Nurul Amaliyah, Taufik Anwar, Aryanto Purnomo, Khayan Khayan, and Slamet Wardoyo
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Toxicology ,Variance test ,Larva ,biology ,Maceration (wine) ,Aedes aegypti ,biology.organism_classification ,Larvicide ,Mauritiana - Abstract
The development of resistance to chemical insecticides among mosquitos has been considered as a setback in vector control. However, the use of chemical insecticides is often toxic to both human and non-target animals, thus it needs the development of natural insecticides. This study aims to analyze the larvicidal effect of Z. mauritiana leaves as a natural larvicidal that is friendly to the environment. This research will outline the larvicidal effect of Z. mauritiana leaves and discuss the significance of addressing this natural larvicide against Aedes aegypti larvae. Methods and Material in this study, we developed a mosquito larvacide by extracting Z. mauritiana leaves with the maceration method. We extracted Z. mauritiana leaves into 5 different concentrations (1%, 3%, 5%, 7%, 9%) and its effect compared to the current chemical larvicide (1% of temephos). Data analysis was performed by using the computer and statistical of variance test One Way Anova. This experiment was successfully 100% killed Aedes aegypti in 24 hours of the intervention of 9% extract of Z. mauritiana leaves which was a powerful effect compare to recent studies. The intervention of concentration variations was significantly associated with larvae mortality (p ≤ 0,001).
- Published
- 2021
15. Determinant Factors of Low Back Pain in Paving Block Workers
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Slamet Wardoyo, Widyana Lakshmi Puspita, Hyasinta Hyasinta, Khayan Khayan, Taufik Anwar, and Muhammad Ifham Hanif
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Work (electrical) ,Informal sector ,Environmental health ,Back pain ,medicine ,Observational study ,Sample (statistics) ,Bivariate analysis ,medicine.symptom ,Psychology ,Low back pain ,Test (assessment) - Abstract
Paving block workers are included in the informal sector and have a risk of lower back pain. Documenting the workers’ health status in the informal sector has not been done well so that workers do not get protection from the government. Heavy physical work puts pressure on the spine associated with repeated body twisting. This study aims to determine work attitude, length of employment, and exercise habits related to low back pain in Pontianak paving block workers in 2018. This type of research is observational with a cross-sectional approach. Sampling uses total sampling. The research sample of 56 paving block workers in the city of Pontianak, West Kalimantan. Data is processed with a computer program. Data analysis was performed univariate and bivariate and tested using the Chi-square test, with α = 5%. The results showed that there was a significant relationship between the length of the work (p = 0.013), work attitude (p-value = 0.038), and exercise habits (p = 0.003) with low back pain.
- Published
- 2021
16. Respiratory mask using a combination of spunbond, meltblown, and activated carbon materials for reducing exposure to CO: an in vivo study
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Taufik Anwar, Widyana Lakshmi Puspita, Khayan Khayan, and Slamet Wardoyo
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Pollution ,Fossil Fuels ,Health, Toxicology and Mutagenesis ,media_common.quotation_subject ,Air pollution ,010501 environmental sciences ,Laboratory scale ,medicine.disease_cause ,01 natural sciences ,Fires ,chemistry.chemical_compound ,Air Pollution ,medicine ,Environmental Chemistry ,Respiratory mask ,0105 earth and related environmental sciences ,media_common ,Air Pollutants ,Carbon Monoxide ,Waste management ,business.industry ,Fossil fuel ,General Medicine ,chemistry ,Charcoal ,Environmental science ,Particulate Matter ,Co exposure ,business ,Carbon monoxide ,Activated carbon ,medicine.drug - Abstract
Air pollution is a serious health problem in almost all developing and developed countries around the world. One component of air pollution dangerous for health is carbon monoxide (CO). The largest source of carbon monoxide is the burning of fossil fuels and peatland fires. The government continues to control pollution through both environmental management and summer pollution control. However, the resulting impact is less than optimal. We conducted a study to test the material used as an alternative respiratory protector in absorbing CO gas. The protective material comprised of a combination of spunbond, meltblown, and activated carbon materials. We carried the study out on a laboratory scale using experimental animals that were subjected to different stages of treatment. The results showed that respiratory protective masks with a combination of activated carbon and spunbond/meltblown materials were better able to inhibit CO exposure (p ≤ 0.001) than respiratory masks without activated carbon. The combination material is thus effective in absorbing CO; it can carry further research out on other harmful gases such as NO and NO2.
- Published
- 2020
17. Plumbum (Pb) in Rainwater in West Kalimantan: Impact of Plumbum (Pb) in Community Blood
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Khayan Khayan-Taufik Anwar-Slamet Wardoyo
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lcsh:TD194-195 ,lcsh:Environmental effects of industries and plants ,lcsh:Science (General) ,lcsh:Q1-390 - Abstract
The low coverage of drinking water in the West Kalimantan-Indonesia region because of the limited availability of decent water as a source of drinking water is the main trigger for the community to use rainwater as a source of drinking water. The way of storing rainwater through zinc roofs and environmental pollution conditions results in rainwater being a health concern for the community because of the content of Plumbum (Pb). In this study, the characteristics of rainwater in the West Kalimantan region were investigated from rainwater collected by people from homes with zinc roofs. Rainwater samples from the collection results were analysed for the presence of Plumbum (Pb). The impact of consuming rainwater is carried out by blood Pb examination. The main problem can analyse the existence of Plumbum (Pb) in rainwater against the content of Plumbum (Pb) in the blood. The results showed that there was a correlation of Pb content in rainwater with Pb content in the blood of people who consumed rainwater as water drink (p≤0.001).
- Published
- 2019
18. A novel centroid initialization in missing value imputation towards mixed datasets
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Titin Siswantining, Taufik Anwar, Devvi Sarwinda, and Herley Shaori Al-Ash
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Mean squared error ,Computer science ,Applied Mathematics ,General Neuroscience ,Small number ,k-means clustering ,Centroid ,Initialization ,Missing data ,computer.software_genre ,General Biochemistry, Genetics and Molecular Biology ,Imputation (statistics) ,Data mining ,Cluster analysis ,computer - Abstract
Currently, many databases contain missing values, especially in medical data. Statistical and data mining approaches often require complete data conditions, where these two approaches will not provide adequate performance if the data contains missing values. Several techniques have been made to overcome missing values, one of which is by deleting data containing missing values. However, this approach will omit a lot of information if the data found includes many missing values. This study used an imputation approach (filling in the missing attributes) with a clustering approach. One of the most common clustering approaches is K-Means Clustering. In K-means clustering, the value of the centroid gets from the closest observed value. In this study, we propose updating the centroid value based on the harmonic average of the distance across all observations per centroid. This method is known as K-Harmonic Means Clustering (KHM). We proposed a new program approach for a mixed dataset on three scenarios for missing values of 10%, 20%, and 30%. From the experiments conducted on experimental data sets containing missing values, we get a small proportion of missing values (10%) with a small number of clusters or K, which gives a smaller RMSE value compared to other scenarios.
- Published
- 2021
19. Revealing Hidden Potentials to Maintain Production by Using Integrated Petrophysical Interpretation Techniques in Mahakam Mature Fields
- Author
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Gilang Ariestya, Taufik Anwar, Supriady Supriady, Haris Kurniawan Hidayat, and Bayu Giriansyah
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Petrophysics ,Production (economics) ,Petrology ,Geology ,Interpretation (model theory) - Abstract
Hydrocarbon identification in mature fields located in Mahakam area is very challenging due to thin and multi layers of reservoir geometry, wide range of water salinity in deltaic environment, depletion and water-rise phenomena in highly producing zones. There are numerous possible gas reservoirs which were dubious and not included in perforation targets due to poor quality sand or risk of water production which could jeopardize the entire well potential. These possible gas reservoirs need to be re-evaluated in order to add perforation targets portfolio in maintaining field production when less new wells drilled. An integrated methodology has been continuously developed and calibrated to reduce uncertainty, hence elevate confidence level of fluid interpretation by combining the existing and recently developed techniques in Mahakam fields. The existing techniques are (1) Conventional Qualitative interpretation, (2) True-Wet Resistivity separation, and (3) Gas-Oil Volumes from simultaneous solution. The new developed techniques are (4) Swirr-SWT comparison, (5) Water Saturation Array Gradient with salinity, (6) AutoFluid resistivity specific cut-off, (7) Dual logs sliding average analysis, (8) Neutron Count Rate, (9) RT-GR cut-off, and (10) Gas Chromatograph dynamic baseline. In collaboration between petrophysicist, development geologist & reservoir engineering, this new integrated fluid interpretation methodology has been applied to re-evaluate more than 11,000 possible gas reservoirs in Mahakam fields. This effort has revealed around 32% of them as hydrocarbon potential reservoirs with total thickness of 4,195 meters. Those reservoirs are then convincingly re-interpreted as gas bearing reservoirs and included as additional perforation candidates. Some of those reservoirs have been perforated and giving additional gain in maintaining gas production of Mahakam fields. By capitalizing the existing data, with no additional data acquisition, hence no additional cost, this integrated fluid interpretation methodology, could be implemented in other fields outside Mahakam to find hidden potentials which not identified yet.
- Published
- 2020
20. Health Education to Reduce Helminthiasis: Deficits in Diets in Children and Achievement of Students of Elementary Schools at Pontianak, West Kalimantan
- Author
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Didik Hariyadi, Taufik Anwar, Slamet Wardoyo, Khayan Khayan, Widyana Lakshmi Puspita, and Bagus Muhammad Ihsan
- Subjects
medicine.medical_specialty ,Hand washing ,Article Subject ,Anemia ,Public health ,030231 tropical medicine ,education ,Helminthiasis ,Developing country ,Infectious and parasitic diseases ,RC109-216 ,medicine.disease ,03 medical and health sciences ,0302 clinical medicine ,Infectious Diseases ,Environmental health ,medicine ,Helminths ,Parasitology ,Health education ,Observational study ,030212 general & internal medicine ,Psychology ,Research Article - Abstract
Worms are still a serious problem for poor and developing countries. Children, especially school-age children, are more at risk of infection. Efforts need to be made to prevent the effects of worms. Prevention can be done through a promotive approach. This observational study with a pre-posttest and cross-sectional approach is aimed at evaluating the effectiveness of health education on healthy and helminthic behavior and analyzing the impact of helminthiasis on the deficit in the diet and children’s learning achievement. The number of samples is 60 students from five grade 3 and 4 elementary schools in North Pontianak, West Kalimantan. The sampling technique was carried out by proportional random sampling. Worm infection in elementary school students was 16.7%, anemia was 55%, and learning achievement scores were less than the average grade of 55%. There was a significant difference in health counseling towards a decrease in the worm number (p=0.046). There was a significant relationship between healthy living behavior and helminthiasis (p=0.005). There was a significant relationship between helminthiasis and anemia (p=0.017). There is a relationship between helminthiasis and learning achievement in elementary school children (p=0.017). There is a relationship between anemia and learning achievement (p=0.005). It is necessary for public health centers to provide treatment services for worms and health education about the effects of helminthiasis on health and learning achievement. The school should provide hand washing facilities in schools, and parents should play an active role in improving clean and healthy lifestyle habits at home.
- Published
- 2020
- Full Text
- View/download PDF
21. Integrated Water Treatment System for Peat Water Treatment
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Khayan Khayan, Adi Heru Sutomo, Ashari Rasyid, Widyana Lakshmi Puspita, Didik Hariyadi, Taufik Anwar, Slamet Wardoyo, Raja Sahknan, and Alkausyari Aziz
- Subjects
Environmental Chemistry ,Pollution ,Water Science and Technology - Published
- 2021
22. A study on missing values imputation using K-Harmonic means algorithm: Mixed datasets
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Titin Siswantining, Devvi Sarwinda, Alhadi Bustamam, Taufik Anwar, and Saskya Mary Soemartojo
- Subjects
Mean squared error ,Statistics ,Preprocessor ,Initialization ,Centroid ,Imputation (statistics) ,Cluster analysis ,Missing data ,Categorical variable ,Mathematics - Abstract
Data cleaning is one step in the preprocessing which in the process often found missing values in the dataset. Missing values is the condition of the absence of data items on a subject. A quick step that can be taken to handle missing values is to remove data containing missing values, but this can reducing information in the data. Another way to handle missing values is by using imputation with mean, median, or mode, and several methods of imputation such as regression, likelihood, and the clustering approach. Imputation with the clustering approach is the focus of this study, where we used the K-Harmonic Means which has been adjusted to handle mixed data. K-Harmonic Means is an extension of K-Means by reducing random centroid initialization sensitivity problems. Imputation of the missing values is carried out by distributing missing values observation to the cluster and replacing the missing values with the information on the same centroid cluster. The results of the simulation were evaluated using the root mean square error and the accuracy values of each imputation value for numerical and categorical data respectively.
- Published
- 2019
23. Escheriosome-mediated delivery of recombinant ribosomal L7/L12 protein confers protection against murine brucellosis
- Author
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Mairaj Ahmed Ansari, Harisankar Singha, Mohammad Owais, R. Khalid, Amirul Islam Mallick, S. Khan, Pallab Chaudhuri, and Taufik Anwar
- Subjects
Ribosomal Proteins ,Cellular immunity ,Fever ,T-Lymphocytes ,Brucella Vaccine ,Brucella abortus ,Brucellaceae ,Abortion, Septic ,Brucellosis ,Microbiology ,Mice ,Immune system ,Adjuvants, Immunologic ,Antigen ,Pregnancy ,Zoonoses ,Escherichia coli ,medicine ,Animals ,Humans ,Antigens, Bacterial ,Mice, Inbred BALB C ,Endocarditis ,General Veterinary ,General Immunology and Microbiology ,biology ,Arthritis ,Public Health, Environmental and Occupational Health ,biology.organism_classification ,medicine.disease ,Virology ,Recombinant Proteins ,Disease Models, Animal ,Infectious Diseases ,Immunization ,Liposomes ,biology.protein ,Molecular Medicine ,Cattle ,Female ,Antibody ,Brucella melitensis - Abstract
Brucellosis is an important zoonotic disease that causes abortion in cattle and undulant fever, arthritis, endocarditis and meningitis in human. In spite of the fact that immunization could be an efficient measure to control brucellosis, not a single ideal vaccine against this important disease has been developed so far. In order to develop an effective vaccine against Brucella abortus (B. abortus), various protective immunodominant gene/protein products of the pathogen have been studied in combination with different adjuvants. For example, recombinant ribosomal protein L7/L12 (rL7/L12) although an interesting T-cell antigen, normally failed to evoke protective immune response when used in free form. In the present study we have demonstrated that Escherischia coli (E. coli) lipid liposome (escheriosome)-mediated cytosolic delivery of recombinant rL7/L12 protein can elicit strong immunological responses in the Balb/c mice. In contrast, egg PC/Chol liposome entrapped rL7/L12, in a manner similar to its free form, was found to impart relatively poor immune response. Furthermore, escheriosome entrapped rL7/L12 protein elicited high IgG2a isotype response suggestive of its relevance in imparting protection against brucellosis in mice. Altogether the present study is a clear indicative of the possible use of escheriosome-based delivery of rL7/L12 protein to induce protective immune responses against experimental murine brucellosis.
- Published
- 2007
24. Identification and characterization of molten globule-like state of hen egg-white lysozyme in presence of salts under alkaline conditions
- Author
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Taufik Anwar, Mohammad Owais, Muhammad Kashif, Swaleha Zubair, Mohammad Rehan, Asma Iqbal, Shaikh M. Atif, Mairaj Ahmed Ansari, and Naeem Khan
- Subjects
Circular dichroism ,Protein Denaturation ,Protein Folding ,Protein Conformation ,Potassium ,Inorganic chemistry ,chemistry.chemical_element ,Biochemistry ,Potassium Chloride ,chemistry.chemical_compound ,Structural Biology ,Animals ,Denaturation (biochemistry) ,Acrylamide ,Quenching (fluorescence) ,Circular Dichroism ,Tryptophan ,General Medicine ,Hydrogen-Ion Concentration ,Alkali metal ,Molten globule ,Spectrometry, Fluorescence ,chemistry ,Protein folding ,Electrophoresis, Polyacrylamide Gel ,Muramidase ,Salts ,Lysozyme ,Chickens - Abstract
In the present study, we elucidated the effect of potassium salts on alkali denatured hen egg white lysozyme (EC 3.2.1.17) using intrinsic/extrinsic fluorescence as well circular dichroism (CD) spectroscopic methods. Intrinsic fluorescence studies revealed that various potassium salts mediate stabilization of lysozyme against alkali denaturation. Far and near UV CD spectrum studies, showed that 2M KCl induced appreciable amount of secondary structure with minimum tertiary contacts in lysozyme at pH 12.6. Acrylamide quenching studies suggest that at pH 12.6, the presence of 2M KCl causes reduced accessibility of the quencher to tryptophan residues of the protein presumably because of its compact conformation. In summary, the results of present study suggest that lysozyme attains a compact folded intermediate with molten globule like characteristics at alkaline pH in presence of potassium chloride.
- Published
- 2010
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