• Title/Summary/Keyword: Data de-identification

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Removal of Organic Load from Olive Washing Water by an Aerated Submerged Biofilter and Profiling of the Bacterial Community Involved in the Process

  • Pozo, Clementina;Rodelas, Belen;Martinez-Toledo, M. Victoria;Vilchez, Ramiro;Gonzalez-Lopez, Jesus
    • Journal of Microbiology and Biotechnology
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    • v.17 no.5
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    • pp.784-791
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    • 2007
  • The present work aims to use a biofilter technology(aerated submerged filters) for the aerobic transformation at laboratory-scale of olive washing water(OWW) generated in the first steps of olive oil processing, as well as the genetic profiling and identification to the species level of the bacteria involved in the formation of the biofilm, by means of TGGE. Chemical parameters, such as biological oxygen demand at five days($BOD_5$) and chemical oxygen demand(COD), decreased markedly(up to 90 and 85%, respectively) by the biological treatment, and the efficiency of the process was significantly affected by aeration and inlet flow rates. The total polyphenol content of inlet OWW was only moderately reduced(around 50% decrease of the inlet content) after the biofilter treatment, under the conditions tested. Partial 16S rRNA genes were amplified using total DNA extracted from the biofilm and separated by TGGE. Sequences of isolated bands were mostly affiliated to the $\alpha-subclass$ of Proteobacteria, and often branched in the periphery of bacteria] genera commonly present in soil(Rhizobium, Reichenowia, Agrobacterium, and Sphingomonas). The data obtained by the experimentation at laboratory scale provided results that support the suitability of the submerged filter technology for the treatment of olive washing waters with the purpose of its reutilization.

A Study on an Efficient and Robust Differential Privacy Scheme Using a Tag Field in Medical Environment

  • Kim, Soon-Seok
    • Journal of the Korea Society of Computer and Information
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    • v.24 no.11
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    • pp.109-117
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    • 2019
  • Recently, the invasion of privacy in medical information has been issued following the interest in the secondary use of mass medical information. The mass medical information is very useful information that can be used in various fields such as disease research and prevention. However, due to privacy laws such as the Privacy Act and Medical Law, this information, including patients' or health professionals' personal information, is difficult to utilize as a secondary use of mass information. To do these problem, various methods such as k-anonymity, l-diversity and differential-privacy that can be utilized while protecting privacy have been developed and utilized in this field. In this paper, we discuss the differential privacy processing of the various methods that have been studied so far, and discuss the problems of differential privacy using Laplace noise and the previously proposed differential privacy. Finally, we propose a new scheme to solve the existing problem by adding a 1-bit status field to the last column of a given data set to confirm the response to queries from analysts.

The Development of Inspection Checklist for Risk Recognition to Prevent Accidents at Worksites (작업현장 사고예방을 위한 위험인지 점검체크리스트 개발)

  • Lim, Hyung-Duk;Kawshalya, Mailan Arachchige Don Rajitha;Kim, Sang-Hoon;Oh, Young-Chan;Lee, Ho-Yong;Nam, Ki-Hoon
    • Journal of the Korean Society of Industry Convergence
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    • v.25 no.5
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    • pp.811-816
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    • 2022
  • Even though continuous management and supervision of reinforcement of policies to safeguard accidents at workplace and work sites were implemented. Accident prevention activities such as inspection and diagnosis are urgently required to induce a preliminary investigation to identify the risk factors for each type of work, before the work task to eliminate risks at the worksites. Since safety inspections at work sites were generally conducted through visual inspections, the results of safety inspections may vary depending on the findings and proficiency of the safety officers. The results of those inspections may have loopholes to prevent potential accidents at work. Therefore, the purpose of this study was to develop a risk identification checklist that can effectively perform safety inspections to prevent accidents at work sites. This study initially analyzed the previously developed accident checklist to identify current complications and issues in safety checklists. Based on the findings of major industrial accidents over the past three years, the relationship between accident, workplace, and work type were analyzed refereeing the safety inspection standards. A risk recognition-checklist was developed to provide basic data on identifying risk factors, and inspection guidance at work sites. To prepare for potential accidents by identifying and taking countermeasures to mitigate the high risk and serious accidents at sites by the guidelines of the checklist. The developed inspection checklist has been practically used by experts at work sites to perform safety inspections, and it has been verified its suitability, and feasibility, to prevent or mitigate workplace accidents, including securing the safety and health of field workers. The role of the developed safety checklist has been considered effective at worksites.

The Improvement Plan for Indicator System of Personal Information Management Level Diagnosis in the Era of the 4th Industrial Revolution: Focusing on Application of Personal Information Protection Standards linked to specific IT technologies (제4차 산업시대의 개인정보 관리수준 진단지표체계 개선방안: 특정 IT기술연계 개인정보보호기준 적용을 중심으로)

  • Shin, Young-Jin
    • Journal of Convergence for Information Technology
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    • v.11 no.12
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    • pp.1-13
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    • 2021
  • This study tried to suggest ways to improve the indicator system to strengthen the personal information protection. For this purpose, the components of indicator system are derived through domestic and foreign literature, and it was selected as main the diagnostic indicators through FGI/Delphi analysis for personal information protection experts and a survey for personal information protection officers of public institutions. As like this, this study was intended to derive an inspection standard that can be reflected as a separate index system for personal information protection, by classifying the specific IT technologies of the 4th industrial revolution, such as big data, cloud, Internet of Things, and artificial intelligence. As a result, from the planning and design stage of specific technologies, the check items for applying the PbD principle, pseudonymous information processing and de-identification measures were selected as 2 common indicators. And the checklists were consisted 2 items related Big data, 5 items related Cloud service, 5 items related IoT, and 4 items related AI. Accordingly, this study expects to be an institutional device to respond to new technological changes for the continuous development of the personal information management level diagnosis system in the future.

A study on oral discomfort in gynecological cancer patients undergoing chemotherapy (화학요법을 받는 부인암환자의 구강불편감에 관한 연구)

  • 정재원
    • Journal of Korean Academy of Nursing
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    • v.25 no.2
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    • pp.372-389
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    • 1995
  • The frequency with which administration of chemotherapy for gynecological cancer treatment is used has increased along with the use of surgery and radiotherapy Among the various side effects of chemotherapy, stomatitis causes a problem of function and sensation in the oral cavity. This oral discomfort can be categorized into two components ; perceived oral symptoms and observed oral symptoms. If the oral problem continues, it may cause infection, bleeding and nutritional deficiencies. As a result of this condition, compliance with the treatment process can be affected as well as the prognosis for the cancer patients. But as the oral discorrfort usually appears after chemotherapy, it is often not reported to the health care personnel as a patient problem. Without problem identification of the oral discomfort and ability to assess the problem, effective intervention cannot be planned. Therefore, this study was conducted to identify the pattern and the degree of oral discomfort due to cancer chemotherapy and thus to provide data for identification of the patient problem and for nursing assessment. The design of this study was a longitudinal de-scriptive study The subjects were in - patients who received chemotherapy under the diagnosis of gynecological cancer between Mar. 15, 1994 and May 15, 1994 at a general hospital in Seoul, Korea. The number of subjects was 64 and they were divided into two groups, one of 41 (A : 5FU & Neoplatin), the other of 23(B : Neoplatin, Cytoxan, Adriamycin), according to the treatment regimen. The data were collected for 24 days using self-re-port instruments. The instruments were the 「Perceived Oral Symptom Assessment Tool」 and 「Observed Oral Symptom Assessment Tool」 developed by this researcher. Data were analyzed using the SPSS-PC program, ANOVA, t-test, paired t-test and the Pearson Correlation Coefficient were applied. The results of this study are as follows : 1. In A regimen the peak time for perceived oral symptom scores was the fifth day after chemotherapy, and the tenth day for observed oral symptom scores. Both of the problems started on first day of chemotherapy and were not resolved completely until the 24th day after treatment. 2. In B regimen, the peak time for perceived oral symptom scores was on the seventh day after chemotherapy, and the eighth day for observed oral symptom scores. It was noted that perceived oral symptom scores were higher than observed oral symptom scores consistently for 24 days. Both also started on first day of chemotherapy, and were not resolved completely until the 24th day after chemotherapy. 3. There were no differences statistically in perceived oral symptom scores between A and B regimen. The loss of appetite and xerostomia caused the most severe discomfort in both of these two groups. 4. The were no differences statistically in observed oral symptom scores between the A and B regi moil. In the A regimen, the highest observed symptom scores were the lips, gingiva, tongue and buccal membrane in that order. But in the B regimen, the highest observed symptom scores were tongue, lips, buccal membrane and gingiva in that order. 5. In A regimen, the patients who had gingival edema and dentures had significantly higher perceived oral symptom scores. And those who had gingival edema and bleeding, foul odor and aphthous stomatitis had significantly higher observed oral symptom scores. 6. In B regimen, the patients who had the experience of stomatitis in the last course of chemotherapy had significantly higher perceived oral symptom scores. Those who had gingival edema had significantly higher observed oral symptom scores. 7. In the A regimen there was no correlation between lab values for lymphocytes and albumin with perceived oral symptom scores and observed oral symptom scores. In the B regimen, there was a significant negative correlation between lymphocytes and albumin with the observed oral symptom scores, but not between perceived oral symptom scores and lymphocytes and albumin values. In conclusion, the nurse should expect that the patient undergoing chemotherapy will complain severely about subjective discomfort and before objective physical change is observed. Also the patients who have chronic oral problems such as dentures, gingival edema and bleeding, foul odor, aphthous stomatitis will complain of severe oral discomfort due to chemotherapy.

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Identification and Characterization of Polymorphic Microsatellite DNA Markers Using Next-generation Sequencing in Parapristipoma trilineatum (차세대 염기서열 분석법을 사용한 벤자리(Parapristipoma trilineatum)의 microsatellite 마커의 개발 및 유전학적 특성 분석)

  • Chun Mae Dong;Mi-Nan Lee;Jae Koo Noh;Jin Woo Park;Young-Ok Kim;Eun-Mi Kim
    • Journal of Life Science
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    • v.33 no.8
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    • pp.623-631
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    • 2023
  • This study was conducted to develop microsatellite markers in Parapristipoma trilineatum using next-generation sequencing. A total of 402,244,934 reads were generated on the Illumina Hiseq X Ten System, yielding 60,738,985,034 bp of sequences. The de novo assembly resulted in 1,320,995 contigs. A total of 952,326 contigs (0.016%) including 151 microsatellite loci were derived from the 1,320,995 contigs longer than 640 bp. A total of 34 primer sets were designed from the 151 microsatellite loci. As a result, 15 microsatellite loci were chosen and used for assuming population genetic parameters in the wild and farmed populations. The mean number of effective alleles was 12, ranging from 6 to 25. The observed heterozygosity (HO) and the expected heterozygosity (HE) ranged between 0.530 and 0.873, with an average of 0.750, and from 0.647 to 0.895, with an average of 0.793, respectively. According to these results, the developed set of 15 microsatellite markers is expected to be useful for the analysis of genetic characteristics in the population of P. trilineatum in Korea. There are requirements now for further genetic information, fishery resource management, breeding guidelines, support with the selection of breeds and studies on the effects of release, all of which will improve species conservation, and through future research, we aim to offer genetic foundational data with that goal.