Proceedings of the 1st International MIPAnet Conference on Science and Mathematics最新文献

{"title":"Relationship of Tobacco Weight in Commercial Cigarettes to Nicotine Levels","authors":"M. Razali, Muhammad Taufik, Evi Dayatul Atiqah, Rid Wanto, A. Daulay, D. Ardilla, E. Susilawati, .. Afniwati","doi":"10.5220/0010614800002775","DOIUrl":"https://doi.org/10.5220/0010614800002775","url":null,"abstract":"","PeriodicalId":257157,"journal":{"name":"Proceedings of the 1st International MIPAnet Conference on Science and Mathematics","volume":"692 25","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133970272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Heat Transfer Mechanism by Natural Circulation for Cooling Material in Nuclear Reactors as a Passive Safety System","authors":".. Novitrian, K. Basar, Roby Dany Riupassa","doi":"10.5220/0010210300002775","DOIUrl":"https://doi.org/10.5220/0010210300002775","url":null,"abstract":": Natural circulation in nuclear reactor cooling systems can be modeled based on computational fluid dynamics (CFD). Modeling is done to study the fluid flow in a closed loop system that occurs due to differences in fluid density. The closed loop system model is fitted with a heater and cooler on the opposite side. Because the density of the fluid depends on the temperature, then by adjusting the temperature difference between the heater and the cooler it can produce a fluid flow that occurs naturally. The initial condition in this study uses water as a working fluid with flow properties that are laminar and incompressible. Variations in temperature differences between heaters and coolers are done to get the temperature distribution and fluid flow velocity. The model is built for time-dependent conditions so that the time needed to transfer heat in a closed loop system can be known. Variations in temperature differences between heaters and coolers are carried out until the maximum conditions of water temperature to remain in the liquid phase. For this condition the maximum temperature is set to 80  C. This research was also developed by using several other types of fluids to determine the effect of density on fluid flow velocity. Other fluids used are gasoline, liquid helium, liquid sodium, and liquid mercury. The height of the closed loop system at the beginning of this study was used by three meters which then varied for heights of up to five and eight meters. Model testing is also carried out for working temperatures with differences between heaters and coolers above 80  C.","PeriodicalId":257157,"journal":{"name":"Proceedings of the 1st International MIPAnet Conference on Science and Mathematics","volume":"351 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134464142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Family Support Perceived by Working Wives in Medan, Indonesia","authors":"S. Z. Nasution, Muhammad Ridha Haykal Amal, R. A. Ariga, C. T. Siregar, W. D. Purba, Muhammad Taufik","doi":"10.5220/0010182500002775","DOIUrl":"https://doi.org/10.5220/0010182500002775","url":null,"abstract":": The family is an important factor in providing support to all family members, especially for working wives. Family support will increase self-confidence and increase motivation for all family members in undergoing all activities. The purpose of this study was to identify family support for wives working in Medan Indonesia. In this study using a descriptive design with a study population that is a wife who works in Medan and the number of research samples are 180 samples with probability sampling method with cluster sampling type. The results showed that family support in the aspect of appreciation in the good category, emotional support in the good category, information support in the sufficient category, and instrumental support in the good category. This research is expected to be an initial reference material to conduct further research related to family support for working wives.","PeriodicalId":257157,"journal":{"name":"Proceedings of the 1st International MIPAnet Conference on Science and Mathematics","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133101160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"In vitro - In vivo Correlation Study of Colon-targeted Metronidazole Microparticle in Corncob Hemicellulose Capsule","authors":"G. I. Dalimunthe, Ida Fauziah","doi":"10.5220/0010613400002775","DOIUrl":"https://doi.org/10.5220/0010613400002775","url":null,"abstract":": Colon-targeted therapy requires a strategy to keep the medicine pass the stomach and release in the colon, which is hard to reach by conventional dosage form of metronidazole in gelatin capsule. In this study, microparticles dosage form of metronidazole which was placed inside corncob-hemicellulose capsule shell need to be compared with conventionally gelatin capsule of metronidazole preparation to examine whether it meets medications standards. The aim of this study was to find out the in vitro and in vivo assay correlation of metronidazole microparticle which covered by corncob hemicellulose capsules. In vitro test was carried out to observe the profile of differences in the percent release of metronidazole from various formulations with various media and times. It was performed using a dissolution tester, in an artificial stomach medium of pH 1.2 for 6 hours in artificial intestinal medium of pH 7.4 for 10 hours, and in artificial colonic medium of pH 8 for 10 hours. The in vivo test design was conducted using six rabbits. The drug released in plasma was measured by HPLC using 1% glacial acetic acid solvent in aqua bidest and methanol-water with a ratio of 80: 20. The test was performed using the cross over design method. Metronidazole microparticle capsules were administered orally according to the test design (metronidazole in microparticles and metronidazole in conventional forms). Based on the plotted graph (data retrieval was started from the drug released in the colon because the drug began to be absorbed at that time), a correlation value was obtained (R 2 = 0.8785). It can be stated that there is a correlation between the formulations tested in vitro and in vivo because the correlation value was greater than 0.8, it is assumed to have a correlation.","PeriodicalId":257157,"journal":{"name":"Proceedings of the 1st International MIPAnet Conference on Science and Mathematics","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127610008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Antimicrobial Activities Assessment of Cinnamon Bark (Cinnamomum burmannii Nees & T. Nees) Extract against Caries Factors","authors":".. Prasetyorini, D. W., .. Yulianita, Novi F. U., Neng Rani","doi":"10.5220/0010205500002775","DOIUrl":"https://doi.org/10.5220/0010205500002775","url":null,"abstract":": This research was conducted to test the antimicrobial activity of cinnamon bark ( Cinnamomum burmani Nees & T. Nees Blume) against Streptococcus mutans , Streptococcus aureus , and Candida albicans . The gradual extraction method was employed using 3 types of solvents which were n-hexane, ethyl acetate, and 70% ethanol. The obtained extracts were dried from their solvents by vacuum-drying and weighed to obtain the extraction yield. The dried extracts were each characterized to gain information about color, aroma, and water content. Further characterization was conducted to qualitatively measure the phytochemical contents such as alkaloids, flavonoids, tannins, and saponin, then followed by growth inhibition tests such as minimum inhibitory concentration (MIC) and inhibition zone test. The result showed that the obtained yields of n-hexane, ethyl acetate, and 70% ethanol were 3.75%, 3.70%, and 32.47%, respectively. All extracts were brown-colored with a distinctive cinnamon aroma. The qualitative phytochemical measurements were as follows: n-hexane extract showed the presence of tannins, ethyl acetate extract showed the presence of flavonoids, while the 70% ethanol extract showed the presence of alkaloids, flavonoids, tannins, and saponin. The MIC test result for n-hexane, ethyl acetate, and 70% ethanol extracts were, in order, 12%, 12%, and 8% against Staphylococcus aureus , 2.5%, 2.5%, and 25% against Streptococcus mutan , and 2.5%, 2.5%, and 25% against Candida albicans . The best inhibition zone test results against Staphylococcus aureus were exhibited by n-hexane, ethyl acetate, and 70% ethanol extracts in following concentrations: 50% (3.16 mm), 50% (5.90 mm), and 32% (6.83 mm), respectively. Against Streptococcus mutan , the best n-hexane concentration was 2.5% (3.83 mm), while ethyl acetate and 70% ethanol extract exhibited relatively the same results in all of their measured concentrations, which were 2.00 mm and 5.30 mm, respectively. Against Candida albicans , the best n-hexane extract concentration was 10% (14.5 mm), and the best ethyl acetate concentration extract was 10% (7 mm). The 70% ethanol extract exhibited relatively same results (1.5 mm) in all measured concentrations.","PeriodicalId":257157,"journal":{"name":"Proceedings of the 1st International MIPAnet Conference on Science and Mathematics","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127672496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Effect of Giving High Voltage to the Concentration of Free Fatty Acids in Crude Palm Oil (CPO)","authors":"Nurhafiz Ahmad Rangkuti, K. Tarigan, S. Humaidi","doi":"10.5220/0010139400002775","DOIUrl":"https://doi.org/10.5220/0010139400002775","url":null,"abstract":"","PeriodicalId":257157,"journal":{"name":"Proceedings of the 1st International MIPAnet Conference on Science and Mathematics","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131226791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A New Colorimetric Sensor Responding CN- Anion based on Hydrazone Compound in Acetonitrile Solution","authors":"S. Suharman, S. Rahayu","doi":"10.5220/0010163400002775","DOIUrl":"https://doi.org/10.5220/0010163400002775","url":null,"abstract":": A new hydrazone compound 2-methoxy-6-(( E )-phenyldiazenyl)-4-(( E )-(2-phenylhydrazineylidene) methyl)phenol (receptor R) based on vanillin has been synthesized and applied to cyanide anion detection in acetonitrile solvent. Color of the receptor solution turned from yellow to purple in the presence of cyanide anion and other anions like H 2 PO 4, Br - , CN - , SO 42, Cl - , I - , CH 3 COO - and F - could not effect color of receptor. Changing in the maximum wavelength of the receptor after addition of cyanide anion was confirmed by UV-Vis spectrophotometer. In the presence of cyanide, wavelength of the receptor changed from 347 nm to 510 nm. Detection limit of the receptor were also observed by UV-Vis spectrophotometer. Based on the UV-Vis titration, the receptor detected cyanide anions with limit of detection 4mM in the acetonitrile solvent.","PeriodicalId":257157,"journal":{"name":"Proceedings of the 1st International MIPAnet Conference on Science and Mathematics","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123473167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Graphs with Partition Dimension 3 and Locating-chromatic Number 4","authors":"D. O. Haryeni, E. Baskoro","doi":"10.5220/0009876400002775","DOIUrl":"https://doi.org/10.5220/0009876400002775","url":null,"abstract":": The characterization study of all graphs with partition dimension either 2, 𝑛 − 2, 𝑛 − 1 or 𝑛 has been completely done. In the case of locating-chromatic numbers, the efforts in characterizing all graphs with locating-chromatic number either 2, 3, 𝑛 − 1 or 𝑛 have reached to complete results. In this paper we present methods to obtain a family of graphs having partition dimension 3 or locating-chromatic number 4 by using the previous known results.","PeriodicalId":257157,"journal":{"name":"Proceedings of the 1st International MIPAnet Conference on Science and Mathematics","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124801762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correlation between Psychological Distress with Level of Methamphetamine Dependence in Male Chronic Methamphetamine Users in the Rehabilitation Center of North Sumatra Province","authors":"V. Camellia, M. Husada, Fasihah Irfani, D. Aldiansyah","doi":"10.5220/0010181100002775","DOIUrl":"https://doi.org/10.5220/0010181100002775","url":null,"abstract":": The aim of this study was to find the correlation between psychological distress and level of methamphetamine dependence in male chronic methamphetamine users. Drug users have fulfilled the inclusion criteria, has been done detoxification, male, methamphetamine use disorder, not psychotic. The exclusion criteria are those who have general medical illnesses based on the history of the disease, have a history of previous head trauma and organic mental illnesses. Structured interviews with MINI ICD-10 to determine subject is indeed a substance use disorder. To know the psychological distress, we determine it with the Hospital Anxiety and Depression Scale (HADS), and to see the score level of dependence, we used WHO ASSIST (The Alcohol, Smoking and Substance Involvement). The study found that out of 88 males subjects with methamphetamine use disorder. The median of dependency level score is 30.5 (6-41), and mean of HADS score is 15.67 (4.76). This study obtained Pearson correlation of psychological distress level scores and dependency level scores with r = 0.242, p = 0.023. There is a significant weak correlation between psychological distress level scores and dependency level scores.","PeriodicalId":257157,"journal":{"name":"Proceedings of the 1st International MIPAnet Conference on Science and Mathematics","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114402560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enlarge Bacterial Cellulose Pore by Adding Aloe Vera Extract as Potential Material for Skin Tissue Engineering Khatarina","authors":"Khatarina Meldawati Pasaribu, S. Gea, .. Tamrin, S. Ilyas, I. Mahendra, Appealwan Altruistis Sarumaha","doi":"10.5220/0010142500002775","DOIUrl":"https://doi.org/10.5220/0010142500002775","url":null,"abstract":"","PeriodicalId":257157,"journal":{"name":"Proceedings of the 1st International MIPAnet Conference on Science and Mathematics","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117055738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}