가마우지의 배설물이 수 생태계에 미치는 영향

Il Han,Keunje Yoo,Gui Nam Wee,Jee Hyun No,Jungwon Park,So Jin Min,Seong Heon Kim,Tae Kwon Lee 한국시뮬레이션학회 2017 한국시뮬레이션학회 학술대회집 Vol.2017 No.-

Evaluation Of Microbial Risk In Soil Amended With Organic Fertilizers From Stabilized Swine Manure Waste

Il Han,Young Shin Lee,Joon Hong Park 대한환경공학회 2007 Environmental Engineering Research Vol.12 No.4

This study evaluated microbial risk that could develop within soil microbial communities after amended with organic fertilizers from stabilized swine manure waste. For this purpose, we assessed the occurrences and competitiveness of antibiotic resistance and pathogenicity in soil microbial communities that were amended with swine manure wastes stabilized by a traditional lagoon fermentation process and an autothermal thermophilic aerobic digestion process, respectively. According to laboratory cultivation detection analysis, soil applications of the stabilized organic fertilizers resulted in increases in absolute abundances of antibiotic resistant bacteria and of two tested pathogenic bacteria indicators. The increase in occurrences might be due to the overall growth of microbial communities by the supplement of nutrients from the fertilizers. Meanwhile, the soil applications were found to reduce competitiveness for various types of antibiotic resistant bacteria in the soil microbial communities, as indicated by the decrease in relative abundances (of total viable heterotrophic bacteria). However, competitiveness of pathogens in response to the fertilization was pathogens-specific, since the relative abundance of Staphylococcus was decreased by the soil applications, while the relative abundance of Salmonella was increased. Further testes revealed that no MAR (multiple antibiotic resistance) occurrence was detected among cultivated pathogen colonies. These findings suggest that microbial risk in the soil amended with the fertilizers may not be critical to public health. However, because of the increased occurrences of antibiotic resistance and pathogenicity resulted from the overall microbial growth by the nutrient supply from the fertilizers, potential microbial risk could not be completely ruled out in the organic-fertilized soil samples.

골프초보자의 여가제약이 몰입 및 운동지속의도에 미치는 영향

서일한 ( Seo¸ Il Han ),김도균 ( Kim¸ Do Kyun ),김선희 ( Kim¸ Sun Hee ) 한국이벤트컨벤션학회 2020 이벤트 컨벤션 연구 Vol.16 No.4

Purpose - It purpose to provide basic data for stable formation of the golf market as a lifelong sport by grasping the effect of golf beginner's leisure restrictions on immersion and exercise speed. Design, data, and methodology - The measurement tools are a total of 29 questions about demographic characteristics, leisure constraints, immersion, and intention to continue exercise and the statistical processing was analyzed by the SPSS 25.0 program Result - First, the leisure Constraints of golf beginners had a significant impact on cognitive and behavioral immersion. Second, leisure Constraints had a significant effect on the intention to continue exercise. Third, immersion had a significant effect on the intention to continue exercise. Conclusions -The golf market will be revitalized through an in-depth understanding of golf beginners who are new customers in the golf market.

Relations of Serum Visfatin and Resistin Levels with Endometrial Cancer and Factors Associated with its Prognosis

Ilhan, Tolgay Tuyan,Kebapcilar, Aysegul,Yilmaz, Setenay Arzu,Ilhan, Turkan,Kerimoglu, Ozlem Secilmis,Pekin, Aybuke Tazegul,Akyurek, Fikret,Unlu, Ali,Celik, Cetin Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.11

Background: The aims of this study were compare the serum visfatin and resistin levels between endometrial cancer (EC) patients and controls and evaluate their power to predict prognosis. Materials and Methods: This prospective study was conducted between March 2013 to June 2014 on the Gynecologic Oncology Department of the University of Selcuk, Konya, Turkey. A total of 42 EC patients and 42 controls were included and assessed for differences in serum visfatin and resistin levels, along with prognostic factors. Results: Endometrial cancer patients had significantly higher visfatin levels than control s (p: 0.011), associated with deep myometrial invasion (p: 0.019). In contrast the serum level of resistin did not significantly differ between EC patients and controls (p: 0.362). However, high resistin level in EC patients was associated with increase lymph node metastasis (p: 0.009). On logistic regression analysis, we found that serum visfatin elevation was associated with risk of myometrial invasion (OR: 1,091; 95%CI: 1.021-1.166; p: 0.010) and serum resistin with risk of lymph node metastasis (OR: 1.018; 95%CI: 1.000-1.035; p: 0.046). For myometrial invasion prediction, a serum visfatin level greater than 26.8 ng/mL demonstrated a sensitivity and specificity of 66.6 % and 96.4%, respectively. For lymph node metastasis prediction, the best cut-off for serum resistin level was 599ng/mL. A serum resistin level greater than this demonstrated a sensitivity and specificity of 87.5% and 77.1%, respectively. Conclusions: Our data suggest that serum visfatin is elevated in patients with EC and serum visfatin and resistin levels could be used to predict the risk of advance stage lesions.

Reshaping the Patient-Physician Relationship through Artificial Intelligence in Medicine? -Promises, Opportunities, and Ethical Challenges

( Ilhan Ilkilic ) 중앙대학교 인문콘텐츠연구소 2020 인공지능인문학연구 Vol.6 No.-

With the rapid development of AI in medicine, it is to be expected that new asymmetries will arise in the doctor-patient relationship and normative terms such as patient autonomy, paternalism, trust, and confidentiality will acquire new meanings and functions. All of these developments will create new and complex ethical questions. Some of these questions will be analyzed and reflected in this article. It is argued that if AI improves healthcare and promotes the well-being of the patient - without violating the fundamental rights of others - it must be viewed as morally right and should not be fundamentally rejected. On the other hand, it should also be reflected what will be changed by the application of AI in healthcare and whether these changes are desirable, legally appropriate, and ethically justifiable. Therefore, we need investigations from the perspective of ethics and other humanities to go along with the establishment of AI applications in medicine simultaneously and not after the event.

Analysis of aerodynamic characteristics of 2 MW horizontal axis large wind turbine

Ilhan, Akin,Bilgili, Mehmet,Sahin, Besir Techno-Press 2018 Wind and Structures, An International Journal (WAS Vol.27 No.3

In this study, aerodynamic characteristics of a horizontal axis wind turbine (HAWT) were evaluated and discussed in terms of measured data in existing onshore wind farm. Five wind turbines (T1, T2, T3, T4 and T5) were selected, and hub-height wind speed, $U_D$, wind turbine power output, P and turbine rotational speed, ${\Omega}$ data measured from these turbines were used for evaluation. In order to obtain characteristics of axial flow induction factor, a, power coefficient, $C_p$, thrust force coefficient, $C_T$, thrust force, T and tangential flow induction factor, a', Blade Element Momentum (BEM) theory was used. According to the results obtained, during a year, probability density of turbines at a rotational speed of 16.1 rpm was determined as approximately 45%. Optimum tip speed ratio was calculated to be 7.12 for most efficient wind turbine. Maximum $C_p$ was found to be 30% corresponding to this tip speed ratio.

Health Metrics and Information Behavior: How Users Estimate and Use Self-Quantifying Activity and Health Information

Ilhan, Aylin Korea Institute of Science and Technology Informat 2020 Journal of Information Science Theory and Practice Vol.8 No.3

This study focuses on users of activity tracking technologies and their related information behavior. How useful is the provided information by the trackers? Do users understand all information and explanations? We conducted a web-based survey. All in all, 631 users of a tracking device filled out the survey. From the perspective of information science, this investigation aims to analyze information needs considering different types of the provided information by activity tracking technologies. Are users satisfied by using the information on their steps, heart rates, and sleep duration? How do users assess readability about heart rate zones and sleep stages? Additionally, we investigated if users understand how to reflect on and adapt their health behavior based on the received explanations. According to the results, users mainly agree that the received information (raw data as well as - to a lesser extent - aggregated data in the form of corresponding diagrams) is useful, that the explanations are easy to understand, and that they know how to use this obtained information. This investigation enables an in-depth insight into how users are applying the self-quantifying activity and health information and which information needs are satisfied.

The effect of single incision laparoscopic cholecystectomy on systemic oxidative stress

Ilhan Ece,Bahadir Ozturk,Huseyin Yilmaz,Serdar Yormaz,Mustafa ?ahin 대한외과학회 2017 Annals of Surgical Treatment and Research(ASRT) Vol.92 No.4

Purpose: Single incision laparoscopic cholecystectomy (SILC) has become a more frequently performed method for benign gallbladder diseases all over the world. The effects of SILC technique on oxidative stress have not been well documented. The aim of this study was to evaluate the effect of laparoscopic cholecystectomy techniques on systemic oxidative stress by using ischemia modified albumin (IMA). Methods: In total, 70 patients who had been diagnosed with benign gallbladder pathology were enrolled for this prospective study. Twenty-one patients underwent SILC and 49 patients underwent laparoscopic cholecystectomy (LC). All operations were performed under a standard anesthesia protocol. Serum IMA levels were analysed before operation, 45 minutes and 24 hours after operation. Results: Demographics and preoperative characteristics of the patients were similiar in each group. The mean duration of operation was 37.5 ± 12.5 and 44.6 ± 14.3 minutes in LC and SILC group, respectively. In both groups, there was no statistically significant difference in hospital stay, operative time, or conversion to open surgery. Operative technique did not effect the 45th minute and 24th hour IMA levels. However, prolonged operative time (>30 minutes) caused an early increase in the level of IMA. Twenty-fourth hour IMA levels were not different. Conclusion: SILC is an effective and safe surgical prosedure for benign gallbladder diseases. Independent of the surgical technique for cholecystectomy, the prolonged operative time could increase the tissue ischemia.

Empowering Privacy in the Digital Age: AI Innovations in Healthcare

Ilhan Uysal 한국디지털융합학회 2023 IJICTDC Vol.8 No.1

In today's digital age where health data is increasingly stored, accessed, and shared electronically, ensuring the privacy and security of patient information has become a major concern. The potential risks associated with unauthorized access, data breaches, and privacy violations require innovative approaches to protect sensitive health data. This is where the power of artificial intelligence (AI) comes into play. AI innovations have emerged as a transformative force in healthcare and offer promising solutions to enhance privacy protection. This paper discusses how healthcare organizations can use artificial intelligence (AI) to protect patient privacy while extracting valuable insights from their data. It also expresses how AI techniques such as differential privacy and fused learning can help organizations collaborate, aggregate their data, and train machine learning models securely without compromising patient privacy. It emphasizes the importance of understanding the challenges and potential limitations of privacy-preserving techniques in this context and encourages stakeholders to collaborate on developing industry standards and best practices for privacy protection.

Clinical Outcomes of Laparoscopic Partial Cystectomy and Conventional Partial Cystectomy for the Treatment of Hepatic Hydatid Cyst

( Ilhan Ece ),( Huseyin Yilmaz ),( Serdar Yormaz ),( Bayram Colak ),( Fahrettin Acar ),( Husnu Alptekin ),( Mustafa Sahin ) 대한간학회 2018 춘·추계 학술대회 (KASL) Vol.2018 No.1

Aims: The aim of this study was to compare the mid-term outcomes of open and laparoscopic partial cystectomy (LPC). Methods: The medical records of patients who underwent conventional partial cystectomy (CPC) and LPC for liver hydatid cyst from March 2009 to January 2016 were retrospectively reviewed. Operative time, blood loss, length of hospital stay, postoperative morbidity, mortality, and follow up outcomes were evaluated. Results: Among 162 patients, 59 of patients were underwent LPC and 103 underwent CPC. Blood loss, postoperative complications were similar in both groups. The mean operative time in the LPC and the CPC groups was respectively 91.4±11.5 and 61.5±18.1 minutes, which showed a significant difference between the both groups. The mean length of hospital stay in CPC group was significantly longer when compared the LPC group. The mean diameter of cyst in LPC group was 6.1±1.1 cm, and 7.8±2.1 cm in CPC group with significant difference. The overall complication rates were 15.2 % in LPC group and 16.5 % in CPC group without significant difference. The most common complication was biliary leakage and surgical site infection. Conclusions: In the hands of experienced laparoscopic surgeons with appropriate technical tools; Laparoscopic drainage and partial cystectomy seem to be safe and effective techniques in carefully selected patients in the surgical treatment of liver hydatid cysts. Technical devices such as grinder aspirator and laparoscopic ultrasonography may expand the indication for laparoscopy.