• 제목/요약/키워드: Public Address

검색결과 629건 처리시간 0.026초

코로나19 전후 한방의료서비스 이용의 변화 비교 연구 (The Comparative Study on Change of Utilization in Korean Medicine before and after COVID-19)

  • 윤해창
    • 대한예방한의학회지
    • /
    • 제28권2호
    • /
    • pp.67-83
    • /
    • 2024
  • Background : Coronavirus disease 2019 (COVID-19) pandemic has profoundly impacted all aspects of life, from disease prevalence to the utilization of medical services. In Republic of Korea, there exists both a duty and a right for Korean Medicine to treat epidemic diseases. However, no studies have been conducted to examine changes in the utilization of Korean Medicine during the pandemic. This study aims to identify the differences in the utilization of Korean Medicine before and after COVID-19. Method : This study analyzed data from the Health Insurance Statistics of the National Health Insurance Service and the Health Insurance Review & Assessment Service from 2016 to 2022. To compare the utilization of Korean Medicine with Western medicine, the analysis was limited to the clinic level. Results : The top 10 most frequently treated conditions in Korean Medicine from 2016 to 2022 remained consistent, primarily involving musculoskeletal diseases, with the exception of functional dyspepsia. Visits to Korean Medicine clinics have declined, while visits to Western Medicine clinics recovered. Despite the overall decline in visits, certain Korean Medicine services increased in frequency, especially in precipitator-simulated acupuncture, indirect moxibustion (moxa burner), pricking cupping (two areas), warming meridian sinew, and complex Chuna therapy (80% as out-of-pocket expenses). Although the relative value units in Korean Medicine services varied, the fees for all services, except for precipitator-simulated acupuncture, increased. Conclusion : These findings indicate that COVID-19 has affected the utilization of Korean Medicine. Further studies are needed to explore the broader impact of epidemics on medical services and to develop policies to address these changes.

북한 주민의 영양실태 및 남한 성인의 관련 인식 (Nutritional status of North Koreans and related perceptions among South Korean adults)

  • 남영민;윤지현
    • 대한지역사회영양학회지
    • /
    • 제29권4호
    • /
    • pp.288-303
    • /
    • 2024
  • Objectives: North Koreans have been facing chronic food shortages and malnutrition. This study examined the nutritional status of North Koreans and the perceptions of South Korean adults regarding their nutritional status. Methods: The nutritional status was examined using nutritional indicators for the general population, children, and reproductive-aged women in North Korea. An online survey was conducted among 1,000 South Korean adults aged 19-69 years to investigate their perceptions regarding the nutritional status of North Koreans. Results: Although the nutritional status of children in North Korea has consistently improved, significant progress in the general population and reproductive-aged women in the country remains elusive. The prevalence of malnutrition among North Korean children has decreased to a level that is not considered severe based on international standards, although it shows a substantial difference from that among South Korean children. The prevalence of undernourishment and food insecurity in North Korea remains over 40%. South Korean adults perceive the nutritional status of North Koreans as being more severe than it is in reality. Notably, a significant inconsistency exists between the perceived and actual nutritional status of North Korean children, with over 95% of South Korean adults perceiving North Korean children's malnutrition as being more severe than it actually is. Moreover, South Korean adults in their 20s to 40s tended to perceive the nutritional status of North Koreans as being more severe than those in their 50s to 60s did. Conclusions: The nutritional status of North Koreans is a matter of concern. The disparity between South Koreans' perceptions of the nutritional status of North Koreans and the actual status highlights the need for accurate information dissemination to effectively address malnutrition in North Korea. These efforts could be instrumental in enhancing public awareness and fostering social consensus on food aid and nutritional support programs for North Korea.

Implementation of Audio Effect Device for Anchor System

  • Seungwon Lee;Soonchul Kwon;Seunghyun Lee
    • International journal of advanced smart convergence
    • /
    • 제13권3호
    • /
    • pp.1-12
    • /
    • 2024
  • Recently, Audio systems transform the configuration of conventional sound reinforcement and public address systems using audio over internet protocol (AoIP), whereby audio signals are transmitted and received based on internet protocol (IP). Currently, AoIP technologies are leading the audio market, and various technologies have been released. Audio networks and the control hierarchy over peer-to-peer (Anchor) technology based on AoIP transmit and receive audio signals over a wide bandwidth without an audio mixer. Audio system based on Anchor technology is constructed by connecting the on-site audio center (OAC), a device that can transmit and receive audio sources and output equipment over IP. Receiving OAC of the Anchor technology can receive and mix audio signals transmitted from different IPs; consequently, novel audio systems can be configured by replacing conventional audio mixers. However, the Anchor technology does not have an equalizer function for improving the quality of audio equipment. Therefore, tone distortion may occur owing to signal loss between equipment, poor audio-signal clarity, and howling due to audio deformation according to different architectural structures and environments. In this study, we implemented an audio effect device capable of tone control using the Audio Processor Core. Using Anchor technology, tone control was realized through an audio effect device in the receiving OAC. The output of the incoming OAC was received by the audio effect device, which adjusted the tone and then outputted it. Thus, the tone issues in Anchor technology were overcome by the receiving OAC and audio effect devices. In future, audio system configurations using Anchor technology could be the standard for audio equipment.

하이퍼바이저 권한의 공격자로부터 안전한 신뢰 실행 환경을 제공하기 위한 부채널 공격 실시간 탐지 기법 (A Real-Time Detection Method for Side-Channel Attacks to Ensure a Secure Trusted Execution Environment Against Hypervisor-Privileged Adversaries)

  • 김상엽;김태훈;신영주
    • 정보보호학회논문지
    • /
    • 제34권5호
    • /
    • pp.993-1006
    • /
    • 2024
  • 최근 퍼블릭 클라우드 사용 증가로 다양한 보안 문제가 발생하고 있다. 이에 CPU 제조사들은 신뢰할 수 없는 클라우드 서비스 제공자가 있더라도 안전하게 서비스를 이용할 수 있는 신뢰 실행 환경(TEE, Trusted Execution Environment) 기술을 도입했다. 대표적으로 AMD는 SEV(Secure Encrypted Virtualization)를 통해 가상 머신 단위의 TEE를 제공한다. 그러나 최근 SEV로 보호된 가상 머신에서 페이지 폴트 기반의 부채널 공격으로 기밀 정보가 유출될 수 있다는 문제가 제기되었다. 이를 해결하기 위해 본 논문에서는 SEV 환경에서 이러한 공격을 실시간으로 탐지하는 방법을 제안한다. 하지만 SEV의 위협 모델에서 공격자는 하이퍼바이저의 권한을 가지므로 이를 실현하기 쉽지 않다. 이를 해결하기 위해 두 가지 접근 방법을 제안한다. 첫째, VMPL(Virtual Machine Privileged Level)을 활용하여 탐지 프로그램이 신뢰할 수 없는 하이퍼바이저로부터 안전하게 동작하도록 보호하는 것이다. 둘째, vPMU(virtual Performance Monitoring Unit)를 활용해 페이지 부채널 공격을 탐지할 수 있는 새로운 특징을 도출하는 것이다. 탐지 프로그램을 설계 및 구현한 결과, 95.38%의 정확도로 페이지 폴트 부채널 공격을 탐지할 수 있었다.

Multiple Camera-Based Real-Time Long Queue Vision Algorithm for Public Safety and Efficiency

  • Tae-hoon Kim;Ji-young Na;Ji-won Yoon;Se-Hun Lee;Jun-ho Ahn
    • 한국컴퓨터정보학회논문지
    • /
    • 제29권10호
    • /
    • pp.47-57
    • /
    • 2024
  • 본 논문은 대기 인원이 많은 혼잡한 환경에서 대기 시간이 지체되어 관리되지 않는 상황을 효율적으로 관리하는 시스템을 제안한다. 혼잡하고 긴 대기 줄은 불편하고 안전사고를 유발할 수 있다. 기존의 시스템은 단순한 하나의 영상 기반으로 대기 줄을 관리했지만, 혼잡한 상황에 다수의 카메라를 통해서 관리해야 하는 복잡한 상황에서는 적용이 어렵다. 이러한 상황에서 효율적으로 다수의 카메라로 탐지된 하나의 줄을 관리하기 위해 다수의 비전 알고리즘을 융합하여 여러 형태의 대기 줄을 정확하게 인식하는 효율적인 멀티비전 긴 대기 줄 탐지 시스템을 개발하였다. 이 줄 인식 융합 알고리즘은 다수의 카메라의 실시간 영상 데이터를 활용하여 중첩된 부분을 이어 붙여 하나의 실시간 파노라마 영상 이미지로 가공한다. 이러한 영상 데이터를 바탕으로 비전 객체 탐지, 객체 추적, 이미지 스티칭, 각도, 간격, 위치 변화량을 융합해 Queue Recognition 알고리즘을 개발하여, 많은 군중 속에서 다양한 형태의 긴 줄을 인식한다. 본 연구는 다양한 환경에서 실시간 대기 다수의 카메라로 인식된 긴 줄을 탐지하는 융합 알고리즘을 통해서 정확도 96%와 F1-score 92%로 높은 성능을 검증하였다.

Factors associated with intention to take COVID-19 vaccine among the university students in Bangladesh

  • Nasir Ahmed Shuvo;Md Sanaul Haque Mondal
    • Clinical and Experimental Vaccine Research
    • /
    • 제11권3호
    • /
    • pp.274-284
    • /
    • 2022
  • Purpose: This study examined the Bangladeshi university students' intention to take coronavirus disease 2019 (COVID-19) vaccines by assessing the Health Belief Model and Theory of Planned Behavior. Materials and Methods: University students were queried on their intention to take COVID-19 vaccines. The sample used in this study (n=310) was obtained through an online survey among university students (age, 18-25 years old) from August 7 to September 18, 2021. Results: Although over 90% of respondents showed their willingness to take the COVID-19 vaccine, around 37.3% of respondents still desired to wait and see to take the vaccine. The most frequently cited reasons for vaccines hesitancy were concerns over side effects (62.4%). There is still an unmet need for adequate information on COVID-19 vaccines (81.4%). Results of the binary logistic regression model showed that students from private universities (odds ratio [OR], 0.19; 95% confidence interval [CI], 0.04-0.97), respondents who concerned about the vaccine safety (OR, 0.07; 95% CI, 0.01-0.44) and side effects of vaccine (OR, 0.21; 95% CI, 0.05-0.89) were less willing to take COVID-19 vaccine. On the other hand, desire to wait to take COVID-19 vaccines was associated with marital status (OR, 7.76; 95% CI, 1.50-40.27); COVID-19 preventive behavior, including use of facemask (OR, 0.25; 95% CI, 0.09-0.70) and maintain social distance (OR,1.75; 95% CI, 1.00-3.07); COVID-19 infection (OR, 0.50; 95% CI, 0.26-0.99); provide more information on vaccines (OR, 2.32; 95% CI, 1.06-5.09); the perceived side effects (OR, 2.82; 95% CI, 1.54-5.17); and effectiveness of COVID-19 vaccines (OR, 2.41; 95% CI, 1.16-5.01). Conclusion: Public health managers should provide adequate information on COVID-19 vaccines to address the concerns about the safety and side effects of the vaccines.

Integrative Assessment of High-Speed Railway System Vulnerability to Future Climate-Induced Flooding in China

  • Hengliang Wu;Bingsheng Liu;Jingke Hong;Yifei Wang
    • 국제학술발표논문집
    • /
    • The 10th International Conference on Construction Engineering and Project Management
    • /
    • pp.127-136
    • /
    • 2024
  • Flooding presents a significant threat to infrastructure, and climate change is exacerbating these risks. High-speed rail (HSR) infrastructure, designed based on historical data, may struggle to cope with future extreme flood events. Infrastructure stakeholders require forecasting capabilities to predict the intensity and frequency of future floods so they can develop adaptive strategies to mitigate flood risks and impacts. Floods can cause significant damage to HSR infrastructure networks, disrupting their operations. Traditional network theory-based frameworks are insufficient for analyzing the three-dimensional effects of floods on HSR networks. To address this issue, this study proposes a comprehensive approach to assess flood risk and vulnerability under future climate scenarios for HSR networks. The method consists of three components. (i) Generate flood inundation data by utilizing global climate models, Shared Socioeconomic Pathways(SSPs), and the CaMa-Flood model. (ii) Fit extreme flood depths to the Gumbel distribution to generate flood inundation scenarios. (iii) Overlay flood scenarios on the HSR network and quantitatively assess network vulnerability based on topology network. When applied to the HSR system in mainland China, the results indicate that flood severity does not necessarily increase under higher SSPs, but may worsen over time. The minimum flood return period that causes HSR disruptions is decreasing, with Hubei Province showing a significant increase in HSR segment failure probability. Discontinuous phase transitions in HSR network topology metrics suggest potential nationwide collapses under future infrequent floods. These findings can inform preventive measures for the HSR sector and flood-resistant standards for HSR infrastructure. The method used in this study can be extended to analyze the vulnerability of other transportation systems to natural disasters, serving as a quantitative tool for improving resilience in a changing climate.

월경주기에 따른 치은열구액 내 염증지표의 변화: 예비 연구 (Influence of Menstrual Cycle on Inflammatory Markers in Gingival Crevicular Fluid : Pilot Study)

  • 박후섭;황수정;조민정;김도경;양선연
    • 치위생과학회지
    • /
    • 제12권1호
    • /
    • pp.71-77
    • /
    • 2012
  • 본 연구는 월경주기에 따른 치주조직의 변화에 관한 예비연구로, 건강한 치주조직을 가지고 있고 월경주기가 일정한 20대 여성 7명과 남성 3명을 대상으로 4주간 8회 추구조사를 하였다. 시진상 치주조직의 상태는 건강하므로 치은열구액 내 바이오마커의 변화를 기준 변수로 하여, 상악전치부 치은열구액 내 MMP-9과 MMP-8, IL-$1{\beta}$의 농도를 측정하여 비모수 검정방법으로 분석하였다. 그 결과, 1. 여성대상자에서 월경시기, 배란추정시기에 각 염증지표들이 상승하는 추세를 보였으나 변화정도는 유의하지 않았다. 2. 성별에 따른 각 염증지표들의 차이는 유의하지 않았으며, MMP-9, MMP-8의 농도는 차이가 없었으나 IL-$1{\beta}$의 농도가 남성에서 유의하게 높았다(p=0.03). 3. 검사시점별 각 염증지표들의 상관관계는 강하거나 상당한 강한 양적 선형관계를 나타내었고 배란추정 시기와 월경시기에 상관계수가 더 높게 나타났다. 4. MMP-8과 IL-$1{\beta}$의 관계는 모든 검사시점에서 유의하였으나 MMP-9의 경우, MMP-8과 IL-$1{\beta}$의 상관관계가 유의하지 않은 시점도 있었다. 따라서, 여성대상자도 월경주기에 따른 변화정도가 남성대상자와 유의한 차이가 없으므로 치주병 위험요인에 따른 치주조직 변화의 추구조사에 참여할 수 있는 근거가 마련되었다. 또한 검사지표 중에 MMP-8이 모든 시점에서 다른 지표와 유의하고 강한 상관관계를 나타내어 대표 바이오마커로 적합할 것으로 사료되었다.

경남지역에서 분리한 Salmonella Enteritidis의 항생제 감수성 검사 및 random amplification polymorphic DNA (RAPD)-PCR을 이용한 유전형 분석 (Analysis of antibiotic susceptibility of Salmonella Enteritidis isolated from Gyeongnam province and the bacterial genotyping by using RAPD-PCR)

  • 김은경;김민경;권현애;윤도경;구정헌;박소연;이희근;조명희;하도윤;김철호;황보원;김상현
    • 한국동물위생학회지
    • /
    • 제41권3호
    • /
    • pp.149-155
    • /
    • 2018
  • Salmonella Enteritidis (S. Enteritidis) are found in animals, humans, and environment. In addition, S. Enteritidis draws attention to the public health concerns due to carriage of antibiotic resistance traits. For these reasons, the prevalence and antibiotic resistance patterns of S. Enteritidis are significant issues with regard to public health. To address this issues, a total of 24 strains of S. Enteritidis from 164 samples collected from several slaughterhouses in Gyeong-Nam province in order for antibiotic resistance profiles. Subsequently, we characterized the genotyping by random amplification polymorphic DNA (RAPD)-PCR. As a result, very high level of resistance to protein synthesis inhibition antibiotics and most isolates were susceptible to others. Six random primers were used for RAPD-PCR to reveal genotypes of S. Enteritidis isolates. One of the primer, P1245, generated 147 distinct RAPD-PCR fragments ranging from 400~3000 bp. The number of RAPD-PCR products ranged from 4 to 8 for this primer. The RAPD-PCR fragments could be placed these strains into 3 subgroups and 2 classes by UPGMA cluster analysis. Interestingly, several S. Enteritidis that isolated from different slaughterhouses showed same genotype. These results showed only limited genetic variation among the isolates, those were grouped into a few different patterns of antibiotic resistance.

Ecological Functions and Losses of Traditional Korean Village Groves

  • Lee, D.-W.;Park, C.-R.
    • 한국제4기학회지
    • /
    • 제18권2호통권23호
    • /
    • pp.65-66
    • /
    • 2004
  • There have been groves, in many cases, along with hedgerows and remnant forests around a traditional Korean village. A village grove is very closely connected to the life of residents. Sometimes it was a holy place where important village festivals were held, and became a resting place for farmers, especially in sunny summer. As a matter of fact, it is noted that traditional Korean village groves had been fostered for many purpose as religion, Confucianism, scenery, sanitation, traffic guard, public security, agriculture, hunting, and military and public uses were included in Chosun Govemor General(1938). Village groves were usually located at the outlet of watershed inside which a village was built. In addition, village groves used to be established along part of mountain ranges, streams and streets. A unique type of village grove, called bibosoop was fostered especially where the outlet of watershed was largely opened. In other cases, it was placed where a part of mountain range was relatively low, or where village residents were likely to see ugly objects such as a huge cliff, stony upland with an unvegetated area and the like(Kim and Jang 1994). In a sense, a sheltebelt is a sort of bibosoop as it is a landscape element to complement places that are exposed to strong winds. However, it is comparable to other typical bibosoop that is situated at a topographically very specific zone of watershed. In this paper, we will address potential functions of Korean village groves from a perspective of modern landscape ecology and show current status of some remnants, based on preliminary surveys. A village grove functions as barrier or filter of objects such as water, nutrients, and other elements and habitat of wildlife (park et al. 2003, Lee 2004). The village grove slows down the flow of water and air, maintains soil moisture an hinders soil erosion, enabling cultivation of crops and bringing up creatures nearby. It contributes to enhancing biodiversity. Birds rest on shrubby and woody trees of the element. Presumably, other organisms may also inhabit the village groves and take advantage of it when those move from a forest patch to others. Emerging insects acclimate themselves in the shade of the green space before they fly to sunny air. Besides the village grove acts as a component of agroforestry system as leaf litter is shed from a grove to an asjacent agricultural area, and transformed into green manure(Lee 2004). By the way, many of the landscape elements were destroyed or declined in Koea during the past several decades. The losses have been parallel or linked to environmental degradation. Unfortunately, we have a little reliable data as for how many groves have disappeared in Korea until now. There has been no complete census on the village groves in Korea, and the viewpoints of survey were to a degree different depending on surveyors. So, it is difficult to analyze the temporal and spatial change of village groves. Currently, national inventory data of Korean village groves are available in three reports. We reviewed the locations of village groves and arranged those according to the present administrative units, DONG. With the limited data, we found that at least 484 of village groves were recorded in South Korea. Among all provinces, village groves were most in Gyeongsanbuk-Do Province and least in Chungcheongbuk-Do Province(Table 1). This is a preliminary report prepared while some quantitative data regarding functions and lossers of the village groves are being collected. More detailed data will be introduced in the near future.

  • PDF