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HEALTH RISK ASSESSMENT OF HOUSEHOLD EXPOSURE TO INDOOR RADON IN ASSOCIATION WITH THE DWELLING'S AGE

  • Shahrokhi, Amin;Shokraee, Forough;Reza, Ali;Rahimi, Hasn
    • Journal of Radiation Protection and Research
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    • v.40 no.3
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    • pp.155-161
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    • 2015
  • Radon is a naturally occurring radioactive gas and a major indoor contribution of exposure to ionizing radiation in dwellings. $^{222}Rn$ is a health hazard gas what is responsible for thousand lung cancer deaths every year. In this study, indoor radon concentrations present in thirty representative houses in Mahallat city, Iran, were determined in order to estimate lung cancer risk associated with residential radon exposure. Long-term passive method, using CR-39, was used to measure the radon concentration. The results showed an association between the age of the dwellings and the indoor radon concentration that was found, in that the concentration of radon tended to increase as the age of the dwelling also increased. The indoor radon concentrations were calculated to be within the range of $23{\pm}2$ to $350{\pm}26Bq{\cdot}m^{-3}$, with an average of $158Bq{\cdot}m^{-3}$. The annual effective dose from inhaled radon and its decay products was calculated between $0.8{\pm}0.1$ and $12.3{\pm}0.9mSv{\cdot}y^{-1}$, with an average of $5.5mSv{\cdot}y^{-1}$. By taking into consideration the EPA recommendation and ICRP statement, the average annual risk of lung cancer from inhaled radon was calculated as 0.09%, 0.06%, 0.01%, and 0.03% for current smokers (CS), those who had ever smoked (ES), never smokers (NS) and the general population, respectively.

Strategies for the Development of Cultural Product Design for the Promotion of Cultural Tourism Festivals(II) -Focusing on the Utilization of Local Cultural Resources- (문화관광축제 활성화를 위한 문화상품 디자인 개발 전략 연구(제 2보) -지역문화자원 활용을 중심으로-)

  • Chung, Kyung-Hee;Lee, Mi-Sook
    • Journal of the Korean Society of Costume
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    • v.60 no.2
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    • pp.51-67
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    • 2010
  • The purpose of this study was to develop the high value-added cultural product design with local cultural resources, and to contribute to promoting cultural tourism festivals. To accomplish this study, first, a preliminary survey is carried out the investigation of cultural product stores and visitors' questionnaire survey. Next, based on these survey and prior study, this study established the development direction and concept of fashion cultural products and to developed fashion cultural products using local cultural resources. Adobe Photoshop 6.0, and Adobe Illustrator CS Program were used for the standardization of patterns, textile design and illustration. The results of this study were as follows; First, based on preliminary research results, the problems of the design of cultural tourism festival products were derived. As one solution to solve this problem, this study established the development direction and concept of fashion cultural products to develop fashion cultural products. The concept of the Andong Maskdance Festival was 'Tribal-Holic'; the Boryeong Mud Festival, 'Get away form it all'; the Gangjin Celadon Festival, 'Timeless Memories'; the Jinju Namgang Yudeung Festival, 'Lighting up the River'; the Chungju World Martial Arts Festival, 'Next Ergonomics Gym'; and the Muju Firefly Festival, 'Eco-Purity'. Second, based on the desired items of festival organizers and the survey of visitor's preference for cultural products, 4 items were selected by festival type. Then a total of 96 designs of 4 kinds each were developed using logos or characters, traditional patterns, special products, symbolizing region, or festival as a motif. Third, the strategy for development of cultural products design for promotion of cultural tourism festivals were 'Place identity design strategy', 'Market oriented design strategy', 'Buyer-Based pricing strategy', 'Regional brand strategy', and 'Distribution networks expansion strategy'.

Coconut Oil Extract Mitigates Testicular Injury Following Adjuvant Treatment with Antiretroviral Drugs

  • Ogedengbe, Oluwatosin O;Jegede, Ayoola I;Onanuga, Ismail O;Offor, Ugochukwu;Naidu, Edwin CS;Peter, Aniekan I;Azu, Onyemaechi O
    • Toxicological Research
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    • v.32 no.4
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    • pp.317-325
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    • 2016
  • Increased access to highly active antiretroviral therapy (HAART) has made the management of drug toxicities an increasingly crucial component of HIV. This study investigated the effects of adjuvant use of coconut oil and HAART on testicular morphology and seminal parameters in Sprague-Dawley rats. Twelve adult male Sprague-Dawley rats, weighing 153~169 g were distributed into four groups (A-D) and treated as follows: A served as control (distilled water); B (HAART cocktail-Zidovudine, Lamivudine and Nevirapine); C (HAART + Virgin coconut oil 10 mL/kg) and D (Virgin coconut oil 10 mL/kg). After 56 days of treatment, animals were killed and laparotomy to exercise the epididymis for seminal fluid analyses done whilst testicular tissues were processed for histo-morphometric studies. Result showed a significant decline in sperm motility (P < 0.05) and count (P < 0.0001) in HAART-treated animals while there was insignificant changes in other parameters in groups C and D except count that was reduced (P < 0.0001) when compared with controls. Histomorphological studies showed HAART caused disorders in seminiferous tubular architecture with significant (P < 0.01) decline in epithelial height closely mirrored by extensive reticulin framework and positive PAS cells. Adjuvant Virgin coconut oil + HAART resulted in significant decrease in seminiferous tubular diameter (P < 0.05), but other morphometric and histological parameters were similar to control or Virgin coconut oil alone (which showed normal histoarchitecture levels). While derangements in testicular and seminal fluid parameters occurred following HAART, adjuvant treatment with Virgin coconut oil restored the distortions emanating thereof.

A Study on the Isomorphism and Standardization of School Development Plan and Specialization Plan (「학교발전계획 및 특성화계획」의 동형성 및 표준화 연구)

  • Ha, Ji-hye;Lim, Heon-Wook
    • Journal of Convergence for Information Technology
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    • v.7 no.3
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    • pp.47-53
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    • 2017
  • The university must open the "School Development Plan and Specialization Plan" at the university allimi. The reason for this is the Special Act on the Disclosure of Information by Educational Institutions, enacted on May 25, 2007, and the Plan for Reform of University Reform announced by the Ministry of Education on Mar 28, 2014. Therefore, we examined the similarity and standardized model of the "School Development Plan and Specialization Plan" published by a total of 137 colleges. As a result of the study, only 17(12.4%) of the college produced information in two ways(school development and specialization), and the rest were not. The school development plan presented quantitative indicators such as world number one, The characterization plan presented qualitative indicators such as human. Based on this, standardized research procedures and conception are presented.

Virtual Reality Based Cultural Tourist Attractions converging with Souvenir (수베니어를 융합한 가상현실 기반의 문화 관광지 가상체험 서비스)

  • Lee, Ga-Yeon;Lee, Seok-hyun
    • Journal of Convergence for Information Technology
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    • v.7 no.3
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    • pp.111-116
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    • 2017
  • This study offers the possibility as a new product of souvenirs from cultural tourist sites with virtual reality contents, instead of a simple exhibit. Users can watch augmented reality contents on souvenirs, and use the virtual experience service of cultural tourist sites with VR viewer. It has 4K-class high-quality $360^{\circ}$ image capture to increase the immersion of users in virtual space, implement virtual reality space and intuitive UI interaction with users using IMU (Inertial Measurement Unit). It is also possible to apply various add-on functions, including 3D contents, through technical development to increase its marketability, and apply in other industries. In addition, the prototype of the souvenir and VR viewer will be made by using a 3D printer and such in order to apply the contents which will be introduced in this study. Various product expansions can be considered through consultation with the relevant companies for the use of ready-made products.

The Effect of Job Stress on the organizational commitment of Disabled Women: A Study on the Mediating Effect of Interpersonal Relationships (여성장애인의 직무스트레스가 조직몰입에 미치는 영향: 대인관계 매개효과 연구)

  • Shin, Jun-Ok
    • Journal of Convergence for Information Technology
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    • v.10 no.5
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    • pp.198-205
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    • 2020
  • The goal of this study was to analyze the mediating effect of interpersonal relationships on the effect that job stress has on the organizational commitment of disabled women. For this purpose, a survey was conducted from 2019. 4. 1 to 2019. 6. 30 on 500 disabled women who were employed through disability welfare centers in the Seoul and Gyeonggi area. Multiple-regression analysis using the SPSS 24.0 statistical program was employed to analyze the collected data and confirm the mediating effect. The results of the analysis are as follows. First, stress factors related to the level of organizational justice and the working environment were revealed to affect the organizational commitment of disabled women. Second, interpersonal relationship was confirmed to have a partial mediating role on job engagement. These conclusions have practical implications for developing various methods to reduce the job stress and increase the level of organizational commitment for disabled women, who face multiple limitations from discriminations against women and the disabled.

Factors Influencing dietary Behavior in Nursing Students (간호대학생의 식행동에 영향을 미치는 요인)

  • Oh, Yun-Jung
    • Journal of Convergence for Information Technology
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    • v.10 no.5
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    • pp.83-91
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    • 2020
  • This study was conducted in order to identify the level of dietary behavior and investigate factors that influence dietary behavior in nursing students. This study was a descriptive survey including 304 students in D city. Data were analyzed using descriptive statistics, t-test, ANOVA, pearson's correlation coefficient and stepwise multiple regression with SPSS 18. The average score of the subject's dietary behavior was 2.72. In the correlation of dietary behavior, there was a significant positive correlation with health concern and dietary attitude, and there was no correlation with nutrition knowledge. Models including the variables, health concern, perceived health status, exercise, dietary attitude and residential type explained 24.4% of the variance for dietary behavior. Health concern was the most influential factor. A practical intervention program which includes these significant variables of subjects is essential to improve of good dietary behavior.

The Effect of 20's Women's Dysmenorrhea & Naengkam with Self Treatment Programs by Jewelry Bed (보석침대 자가 치유프로그램이 20대 여성의 생리통과 냉감에 미치는 영향)

  • Song, Ji-Su;Hong, Seong-Gyun
    • Journal of Convergence for Information Technology
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    • v.10 no.6
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    • pp.177-182
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    • 2020
  • The purpose of this study was proceed for 4weeks to determine the effect of 20's women's dysmenorrhea with self treatment programs by Jewelry bed. The subjects of this study participated 30 persons, Experimental group was performed Jewelry bed self treatment programs combined with lower body and lower extremity pattern and trunk for three times per week, during 4 weeks. A dysmenorrhea was appeared younger women's with naengkam. The results of comparison of variations in each groups showed that there was a significant difference in the experimental group(p<0.05). It looks liked limited but this research got a meaning to successful recovery motivations can gives to un-selfished peoples with dysmenorrhea problems on their physical body. Finally, It mentioned these study results will be useful as reference data for the research about the reduce for women's dysmenorrhea in the later.

A Study on the Smart Healthcare health management System (스마트 헬스케어 건강관리 시스템에 관한 연구)

  • Han, Jeong-Ah;Na, Won-Shik
    • Journal of Convergence for Information Technology
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    • v.10 no.6
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    • pp.8-13
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    • 2020
  • In this paper, we study smart healthcare devices that enable active health care by building health care system with acquaintances or family members rather than single health care. The company develops health care services for families regardless of age and gender through intuitive UI design as a target for young users who serve elderly parents. Automated collection of health information and real-time feedback are available, and data can be aggregated and analyzed through repeaters. It can also utilize structured databases in the form of big data. The services offered can be used to prevent diseases and reduce medical expenses through health care, while automatic management can maximize users' convenience and increase demand. By reducing the development period of products that are based on this technology, reducing the development period of products and strengthening competitiveness, the company has the advantage of inducing generation-to-generation communication in an era when it is becoming a nuclear family.

Analysis of the Monopulse Radar Tracking Errors using Orthogonally Deployed Antenna Sets for Cross-eye Jamming (십자형으로 배치된 크로스아이 재머 안테나를 이용한 모노펄스 레이다 재밍 오차 분석)

  • Lim, Joong-Soo;Chae, Gyoo-Soo
    • Journal of Convergence for Information Technology
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    • v.10 no.6
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    • pp.14-18
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    • 2020
  • In this paper, when two sets of cross-eye jammer antennas are installed vertically to jam a monopulse radar, the jamming effects according to the jammer's phase difference, amplitude ratio, and radar angle of engagement are analyzed. The phase difference and amplitude ratio of the cross-eye jammer can be adjusted in the jammer, but since the angle of engagement is relatively determined by the radar, it is very important to respond to changes in the angle of engagement. The orthogonally deployed jammer antennas can be considered as a good way to increase the jamming effect while minimizing the hardware configuration, and the jamming effect is analyzed while changing the angle of inclination from 0° to 360°. This jammer greatly improves the jamming effects at the angles of incidence 45°~135° and 225°~315°, compared to a single jammer. And it is expected to be useful in the design of cross-eye jammers for military aircraft and ships.