• Journal of Veterinary Science
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• 제25권4호
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• pp.57.1-57.12
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• 2024

Importance: Sheep and goat pox (SGP) virus infection is a highly fatal viral infection of small ruminants that causes major production losses in sheep and goats in Ethiopia while also limiting international trade. Objective: This study aimed to estimate the seroprevalence of SGP infection and assess related risk variables. Methods: A cross-sectional study was conducted from February to August 2023 on 384 serum samples taken from sheep and goats. A serum neutralization test was conducted to detect the presence of antibodies against the SGP virus in Wolaita Sodo Regional Laboratory. Results: The overall seroprevalence rate of SGP was 4.95%. Factors such as sheep (8.26%), female sheep and goats (7.45%), older sheep and goats (8.33%), larger flock size of sheep and goats (10.47%), poorly conditioned sheep and goats (31.58%), sheep and goats with a tick on their skin (10.38%), and animals that had not been vaccinated (5.17%) were found to have higher seroprevalence. Furthermore, the seropositivity in sheep was five times greater than in goats (adjusted odds ratio [AOR], 4.73; 95% confidence interval [CI], 1.39-15.99). Additionally, large-sized flocks of sheep and goats were more likely to be seropositive to pox disease than small-sized flocks (AOR, 6.73; 95% CI, 1.58-28.67). Conclusions and Relevance: Thus, the study revealed the prevalence of SGP in the Wolaita zone. Additional research should be conducted to estimate the extent of the disease at the regional level, and management measures should be implemented to reduce the economic losses associated with this condition.

• Journal of Veterinary Science
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• 제25권3호
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• pp.46.1-46.11
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• 2024

Importance: Rabies is a neglected tropical viral disease most often transmitted through the bite of an infected animal. Objective: This study assessed the level of knowledge, attitudes, and practices of the Shone Ttown community toward rabies. Methods: A survey-based cross-sectional study was conducted in Shone town, Ethiopia, from November 2022 to April 2023. Woreda was selected purposefully, while Kebeles and the study populations were selected by simple random sampling. Four hundred and sixteen respondents were interviewed using a semi-structured questionnaire. Results: All respondents had heard about rabies from different sources, with the majority hearing from informal sources (62%). Approximately 51.9%, 0.7%, and 47.4% of individuals were aware of saliva contact, rabid animal bites, and both as means of transmission, respectively. The survey showed that 64.4% of participants knew the 100% fatal nature of rabies once the clinical signs developed, and 35.6% did not. Approximately 51.4% of respondents agreed that killing stray dogs was an effective method for rabies prevention. In this study, 72.6% of the respondents had contact with pets, and 36.8% of the interviewees had vaccinated their dogs. Only the educational level (p = 0.03) was associated with knowledge of the transmission route. Age (p = 0.04) and educational level (p = 0.01) had a statistically significant association with knowledge of the risk of not vaccinating dogs. Conclusions and Relevance: A lack of formal education in the communities, low levels of education, and the majority of respondents acquiring their knowledge from unofficial sources are important contributors to the low levels of awareness.

• Safety and Health at Work
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• 제14권3호
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• pp.287-294
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• 2023

Background: Fruit and vegetable market is an abundant source of bioaerosols. Exposure to organic and inorganic waste and long-term inhalation of bioaerosols during working hours leads to chronic respiratory symptoms. Hence, this study aimed to determine the prevalence of chronic respiratory symptoms and related factors among fruit and vegetable workers compared with the control group in Addis Ababa, Ethiopia. Methods and materials: A comparative cross-sectional study was conducted from 2020 to 2021. Data were entered in EpiData 3.1 and exported to Statistical Package for the Social Sciences (SPSS) version 25. Logistic regressions were computed to depict the data and related factors. The culture method was done to count and compare bacterial and fungal concentrations between fruit and vegetable workers and office workers. Results: In this study, the prevalence of chronic respiratory symptoms (PR = 2.87, 95% confidence interval [CI]: 1.772-4.66) was significantly higher among fruit and vegetable workers (46.7%) than controls (23.4%). Sex (adjusted odds ratio [AOR] = 2.11, 95% CI = 1.12-3.98), educational status (AOR = 1.34, 95% CI = 0.78-2.32), working hours per day (AOR = 3.91, 95% CI = 1.586-9.65), and working department (AOR = 3.20, 95% CI = 0.90-11.40) were associated with chronic respiratory symptoms. Bacterial and fungal concentrations were significantly higher in the air of the vegetable market (276 colony-forming unit) than the air in the workplace of controls (7 colony-forming unit). Conclusion: The fruit and vegetable market workers (greengrocers) had a higher prevalence of chronic respiratory symptoms relative to office workers. Respiratory protective devices should be given to deliver preventive measures.

• International Journal of Computer Science & Network Security
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• 제23권10호
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• pp.107-114
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• 2023

The study provides the identification of vulnerabilities in the security issues by Wireless Network. To achieve it the research focus on packet flow analysis, end to end data communication, and the security challenges (Cybercrime, insider threat, attackers, hactivist, malware and Ransomware). To solve this I have used the systematic literature review mechanisms and demonstrative tool namely Wireshark network analyzer. The practical demonstration identifies the packet flow, packet length time, data flow statistics, end- to- end packet flow, reached and lost packets in the network and input/output packet statics graphs. Then, I have developed the proposed model that used to secure the Wireless network solution and prevention vulnerabilities of the network security challenges. And applying the model that used to investigate the security challenges and vulnerabilities of cloud computing services is used to fulfill the network security goals in Wireless network. Finally the research provides the model that investigate the security challenges and vulnerabilities of cloud computing services in wireless networks

• International Journal of Computer Science & Network Security
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• 제24권4호
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• pp.170-178
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• 2024

Through the growth of the fifth-generation networks and artificial intelligence technologies, new threats and challenges have appeared to wireless communication system, especially in cybersecurity. And IoT networks are gradually attractive stages for introduction of DDoS attacks due to integral frailer security and resource-constrained nature of IoT devices. This paper emphases on detecting DDoS attack in wireless networks by categorizing inward network packets on the transport layer as either "abnormal" or "normal" using the integration of machine learning algorithms knowledge-based system. In this paper, deep learning algorithms and CNN were autonomously trained for mitigating DDoS attacks. This paper lays importance on misuse based DDOS attacks which comprise TCP SYN-Flood and ICMP flood. The researcher uses CICIDS2017 and NSL-KDD dataset in training and testing the algorithms (model) while the experimentation phase. accuracy score is used to measure the classification performance of the four algorithms. the results display that the 99.93 performance is recorded.

• 한국환경생태학회지
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• 제30권1호
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• pp.71-80
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• 2016

본 연구는 2014년 6월부터 10월까지 강원도 태백산도립공원 10개 조사지점의 이화학적 수질특성과 담수어류상을 조사하였다. 채집된 어류는 3과 7종이 확인되었고, 멸종위기종에 속하는 얼룩새코미꾸리(Koreocobitis naktongensis) 1종이 출현하였다. 한국고유종은 얼룩새코미꾸리(Koreocobitis naktongensis), 참종개(Iksookimia koreensis) 2종이 출현하였다. 우점종은 버들치(Rhynchocypris oxycephalus)로 전체 개체수의 89%를 차지하였으며, 아우점종은 대륙종개(Orthrias nudus)가 8.9%로 나타났다. 이 화학적 수질변수 중 전기전도도, 탁도, pH, 총용존물질(TDS)은 조사 지점별로 농도의 큰 변이를 보였다. 이 중 전기전도도와 총용존물질은 하류하천보다 상류하천에서 더 높은 농도값을 보였으며, 계절적 변이도 상류하천에 더 큰 것으로 나타났다. pH는 하류로 갈수록 감소하는 경향을 보였으며, 특히 S5에서 급격한 감소를 보였다. 이는 S4의 산성광산배수 유입으로 인한 희석효과가 나타나는 것으로 보인다. 정성적 서식지평가지수(QHEI)에 의거한 소도천 유역의 물리적 서식지 상태는 "양호"한 서식환경(평균 : 157.3, 범위 : 78 ~ 194)을 보이는 것으로 평가되었다.

• 한국환경복원기술학회지
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• 제12권1호
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• pp.32-43
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• 2009

The purpose of this study is to suggest the visual landscape plan for Shinan province with ecological landscape resources, which is comprised of more than 1,000 islands. The plan was done by the order of image plan, landscape structure plan and detained landscape plan. The image of Shinan province was elicited as 'nature', 'complexity' and 'connectivity', by the aspects of planning, cognitive and strategic sides. The landscape zones are planned, such as leisure zone, rural & marine ecological zone and marine tourism zone, and the landscape axes are also set, such as marine axis, ecological axis and circular axis. Especially to conserve the ecological resources, some conservation zones are proposed and design guidelines for each landscape type are also provided, which are not commonly included in the urban landscape plan. Consequently, the landscape plan and ecological environmental plan were complementary to each other. In the detailed landscape plan, more specific plans and design guidelines are suggested for coastal scenery, village and forest scenery, historical and cultural landscape management and promotion. To improve the visual landscape in terms of planning and administrative aspects, the visual landscape plan has become increasingly important for the local governments. The establishment of visual landscape plan may hopefully help to make Shinan province more beautiful and attractive. The landscape plan and ecological environment plan should be integrated, and the further discussion and research are necessary.

• The Korean Journal of Physiology
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• 제24권1호
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• pp.145-159
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• 1990

Recently, it has been suggested that the endogenous adenosine may be the mediator for the intercellular communication in the regulation of tubuloglomerular feedback control and renin release. Even though two subclasses of adenosine receptors, A1 and A2, have been described, their functional roles are controversial. The present study was undertaken to clarify the role of adenosine receptors in hypertensive rabbit caused by clamping of renal artery. Experiments were done in two-kidney one clip Goldblatt hypertensive rabbits (2K1GHR) and sham-operated normotensive rabbits. Adenosine, N6-cyclohexyladenosine (CHA) and 5'-N-ethylcarboxamidoadenosine (NECA) were infused into a renal artery. The decreases in urine volume, renal blood flow, glomerular filtration rate and excreted amounts of electrolytes caused by adenosine and CHA were significantly attenuated in 2K1CHR. However, changes in renal function caused by A2 adenosine receptor agonist, NECA, tend to be accentuated in 2K1CHR. These results suggest that the attenuation of renal effect caused by adenosine and A1 adenosine receptor agonist may be due to the modification of adenosine receptor in the kidney in Goldblatt hypertensive rabbits.

• 한국철학논집
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• 제52호
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• pp.243-280
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• 2017

19~20세기 초 한국에는 다양한 종교운동이 분출하였다. 서구 기독교가 유입하여 크게 성장하였고, 전통 유교 역시 종교로서 변화를 모색했다. 동시에 새로운 종교들도 나타났는데 대표적인 것이 동학(천도교), 대종교, 증산교, 원불교의 민족종교이다. 대체로 이들 민족종교는 한국의 전통적 종교성과 연관된 한국 정신문화와 깊은 관련이 있다. 본 연구에서는 민족종교 속에 내재한 한국 정신문화를 추론해 보고자 한다. 이를 위해 먼저 한국 전통의 정신문화인 단군신화, 제천의식, 소도 등과 외래문화와 한국 정신의 융합을 추구한 최치원, 원효, 일연, 이황 등의 철학을 경천사상, 실천사상, 조화사상 등으로 정리하고, 이후 민족종교인 동학, 원불교, 증산교에서 이들이 어떻게 발현되는지를 추론하고자 한다.

• Parasites, Hosts and Diseases
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• 제36권3호
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• pp.163-170
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• 1998

검은머리물떼새의 서식지로 알려져 있는 서해안 일부 도서지역에서 채집한 참굴에서 참굴큰입흡 충 (Gwmophano쳐esseoi)의 피낭유충 감염상을 조사하였다. 조사 지역은 전라남도 신안군의 압 해도, 충청남도 서천군의 유부도, 전라북도 군산시 옥도면의 선유도, 무녀도, 장자도, 인천광역시 강화군 서도면의 주문도, 볼음도 등 7개 지역이었다. 이 흡충의 고도 유행지인 압해도에서는 1995 년 8월부터 1996년 10월까지 매 월별 피낭유충 감염상을 조사하였다. 총 14차례 중 5차례를 제외하고는 모두 100%의 감염률을 나타내었고 감염된 굴의 월별 평균 피낭유충 감염량은 761-2,077 개 범위이었다. 감염밀도의 계절별 변화양상은 나타나지 않았으나 굴의 무게가 증가합에 따라 감염량도 증가하는 양상을 보였다. 유부도산 굴은 조사한 총 63개에서 54개의 피낭유충이, 선유도산굴은 조사한 30개 중 25개 (83.3%)에서 1-66개 (평균 12.6개)의 피낭유충이 검출되었으며 무녀 도산굴은 조사한 50개 모두에서 3 162개 (평균 53.5개)의 피낭유충이 검출되었다. 주문도산 참굴 100개에서는 총 4개의 피낭유충이 검출되었으나 장자도산 55개와 볼음도산 50개의 굴에서는 피낭유충이 전혀 검출되지 않았다. 이상의 결과로 참굴큰입흡충이 전라남도 신안군 압해도에서는 지금도참굴을 중간숙주로 하여 농후하게 유행하고 있고, 전라북도 군산시 옥도면의 무녀도와 선유도, 충청남도 서천군 장항읍의 유부도, 인천광역시 강화군 서도면 주문도 등이 이 흡충의 새로운 유행지임을 확인하였다.