• Title/Summary/Keyword: Mass Death

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Mass Death of Predatory Carp, Chanodichthys erythropterus, Induced by Plerocercoid Larvae of Ligula intestinalis (Cestoda: Diphyllobothriidae)

  • Sohn, Woon-Mok;Na, Byoung-Kuk;Jung, Soo Gun;Kim, Koo Hwan
    • Parasites, Hosts and Diseases
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    • v.54 no.3
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    • pp.363-368
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    • 2016
  • We describe here the mass death of predatory carp, Chanodichthys erythropterus, in Korea induced by plerocercoid larvae of Ligula intestinalis as a result of host manipulation. The carcasses of fish with ligulid larvae were first found in the river-edge areas of Chilgok-bo in Nakdong-gang (River), Korea at early February 2016. This ecological phenomena also occurred in the adjacent areas of 3 dams of Nakdong-gang, i.e., Gangjeong-bo, Dalseong-bo, and Hapcheon-Changnyeong-bo. Total 1,173 fish carcasses were collected from the 4 regions. To examine the cause of death, we captured 10 wondering carp in the river-edge areas of Hapcheon-Changnyeong-bo with a landing net. They were 24.0-28.5 cm in length and 147-257 g in weight, and had 2-11 plerocercoid larvae in the abdominal cavity. Their digestive organs were slender and empty, and reproductive organs were not observed at all. The plerocercoid larvae occupied almost all spaces of the abdominal cavity under the air bladders. The proportion of larvae per fish was 14.6-32.1% of body weight. The larvae were ivory-white, 21.5-63.0 cm long, and 6.0-13.8 g in weight. We suggest that the preference for the river-edge in infected fish during winter is a modified behavioral response by host manipulation of the tapeworm larvae. The life cycle of this tapeworm seems to be successfully continued as the infected fish can be easily eaten by avian definitive hosts.

A Study on the Measures against Suicide Terrorism (자살테러에 대한 대책 연구)

  • Choi, Jin-Tai
    • Journal of the Society of Disaster Information
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    • v.2 no.1
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    • pp.139-155
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    • 2006
  • Over the past two decades suicide terrorism has become an ever-widening phenomenon. When suicide terrorism was first introduced in the Middle East it seemed that this new phenomenon was invincible and that it might change the innate imbalance between terror groups and their rivalry governments. This did not in fact occur. Looking at history of terrorism, it can be seen that suicide attacks are in actuality a very old modus operandi. However, contemporary suicide terrorism differs from such historical tactics, just as the whole phenomenon of terrorism differs from ancient modes of warfare. Modern suicide terrorism is aimed at causing devastating physical damage. through which it inflicts profound fear and anxiety. Its goal is to produce a negative psychological effect on an entire population rather than just the victims of the actual attack. The relatively high number of casualties guaranteed in such attacks, which are usually carried out in crowded areas, ensures full media coverage. Thus, suicide terrorism, ranks with other spectacular modus operandi such as blowing up airplanes in mid air or the use of Weapons of Mass Destruction as a sure means to win maximum effect. For the purposes of this paper a suicide terror attack is defined as a politically motivated violent attack perpetrated by a self-aware individual (or individuals) who actively and purposely causes his own death through blowing himself up along with his chosen target. The perpetrator's ensured death is a precondition for the success of his mission. The greatest potential risk suicide terrorism may pose in future is if terrorists carry out operations combined with other spectacular tactics such as blowing up airplanes or the use of Weapons of Mass Destruction. Such a combination will increase immensely the death toll of a single terror attack and will have a shocking psychological effect on public moral. At this level suicide terrorism would constitute a genuine strategic threat and would probably be confronted as such. This study portrays a general overview of the modern history of suicide terror activity worldwide, focusing on its main characteristics and the various aims and motivations of the terror groups involved. In addition, This study provides an overview what is to be done to prevent such terrorist attacks.

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Mass Spectrometry-Based Analytical Methods of Amatoxins in Biological Fluids to Monitor Amatoxin-Induced Mushroom Poisoning

  • Choi, Jin-Sung;Lee, Hye Suk
    • Mass Spectrometry Letters
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    • v.13 no.4
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    • pp.95-105
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    • 2022
  • Amatoxin-induced mushroom poisoning starts with nonspecific symptoms of toxicity but hepatic damage may follow, resulting in the rapid development of liver insufficiency and, ultimately, coma and death. Accurate detection of amatoxins, such as α-, β-, and γ-amanitin, within the first few hours after presentation is necessary to improve the therapeutic outcomes of patients. Therefore, analytical methods for the identification and quantification of α-, β-, and γ-amanitin in biological samples are necessary for clinical and forensic toxicology. This study presents a literature review of the analytical techniques available for amatoxin detection in biological matrices, and established an inventory of liquid chromatography (LC) techniques with mass spectrometry (MS), ultraviolet (UV) detection, and electrochemical detection (ECD). LC-MS methods using quadrupole tandem mass spectrometry, time-of-flight mass spectrometry, and orbitrap MS are powerful analytical techniques for the identification and determination of amatoxins in plasma, urine, serum, and tissue samples, with high sensitivity, specificity, and reproducibility compared to LC with UV and ECD, enzyme-linked immunoassay, and capillary electrophoresis methods.

A Brief History and National Safety Regulation on the Weapons of Mass Destruction Including Biological Agents (생물작용제를 포함한 대량살상용 생물학적 무기에 대한 역사 및 법률적 안전규제 사항에 관한 고찰)

  • Kim, Jee-Hee;Lee, Si-Young
    • Journal of the Korean Society of Safety
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    • v.22 no.4
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    • pp.102-109
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    • 2007
  • A bioterrorism attack is the deliberate release of viruses, bacteria, or other germs(agents) used to cause illness or death in people, animals, or plant. These agents are found in nature, but it is possible that they could be changed to increase their ability to cause disease, make them resistant to current medicines, or to increase their ability to be spread into the environment. Terrorists may use biological agents because these agents can be extremely difficult to detect and do not cause illness for several days. Some bioterrorism agents, like smallpox virus, can spread from person to person, like anthrax, can not. From these agents, we discussed the characteristics of biological agents and national safety regulation on the weapons of mass destruction including bioterrorism.

Multicentric Form of Lymphosarcoma in a Dog (개에서의 다중심형 림프육종의 발생례)

  • 김정은;장광호;채형규;임재현;권영삼;이근우;장인호
    • Journal of Veterinary Clinics
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    • v.16 no.2
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    • pp.492-496
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    • 1999
  • A 3-year old male Maltese, which had enlarged and ballooned superficial lymph-nodes, was admitted to the Veterinary Teaching Hospital, College of Veterinary Medicine, Kyung-pook National University. Radiographic findings indicated cranial mediastinal mass, interstitial pneumonitis, conspicuous splenomegaly and liver enlargement. The patient showed anorexia, depression and anemia. It was autopsied following its death 2 days after admittance. There were copious hemoperitoneum, lymphomatous mass in the spleen, torsion of the mesenterium and stenosis of the duodenum. On the microscopic observation, there was the increase of the amount of lymphocytic cytoplasm and numbers of nucleus-devided lymphocytes followed by their diffused infiltration in lymph nodule. Based on the physical, histological and pathological findings, this case was diagnosed as a multicentric form of lymphosarcoma.

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Survival of Colorectal Cancer Patients in the Presence of Competing-Risk

  • Baghestani, Ahmad Reza;Daneshvar, Tahoura;Pourhoseingholi, Mohamad Amin;Asadzade, Hamid
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.15
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    • pp.6253-6255
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    • 2014
  • Background: Colorectal cancer (CRC) is considered to be a main cause of malignancy-related death in the world, being commonly diagnosed in both men and women. It is the third leading cause of cancer dependent death in the world and there are one million new cases diagnosed per year. In Iran the incidence of colorectal cancer has increased during the last 25 years and it is the fifth cause of cancer in men and the third in women. Materials and Methods: In this article we analyzed the survival of 475 colorectal patients of Taleghani hospital in Tehran with the semi-parametric competing-risks model. Results: There were 55% male cases and at the time of the diagnosis most of the patients were between 48 and 67years old. The probability of a patient death from colorectal cancer with survival of more than 25 years was about 0.4. Body mass index, height, tumour site and gender had no influence. Conclusions: According to these data and by using semi-parametric competing-risks method, we found out that only age at diagnosis has a significant effect on these patient survival time.

A Study on Attitude to Euthanasia by Student Nurses (간호대학생의 안락사에 대한 태도)

  • Kim So-Nam
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.9 no.3
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    • pp.473-483
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    • 2002
  • The purpose of this study was to explore the attitude of student nurses to euthanasia. The convenient sample for this study consisted of 293 nursing students at a nursing college in Kyeongi Province. The data were collected from Oct. 15, 2002 to Oct. 30, 2002 and were analyzed using frequency, percentage, and $X^2$-test with the SAS package. The results of this study are as follow : 77.1% of students agreed to passive euthanasia and 70.6% subjects agreed to legalization of passive euthanasia. 78.5% of students can given an exact explanation of the concept of hospice. They obtained information about hospice from the mass media (1.1%), books (30.0%), friends and neighbors (3.4%), and religious groups (2.4%). The preferred place for death was reported to be home (75.4%), hospital (9.4%) or a peaceful place (6.3%). Fears of facing death were suffering in death (23.4%), grief of remaining family (21.2%), unknown about the other world (10.0%), separation from people who are loved (9.7%), forgotten from the people's memory(6.3%). In conclusion, the attitude of student nurses toward passive euthanasia approached a positive direction. But euthanasia was seen as dangerous and having multiple problems. Therefore the training for student nurses as health professionals should include content on dealing with hospice care and euthanasia.

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A Frame Analysis of Nurse-related Articles from Korean Daily Newspapers (국내 주요 일간지에 나타난 간호사 관련 기사의 프레임 분석)

  • Na, Mi Su;Kang, Jeong Hee
    • The Journal of Korean Academic Society of Nursing Education
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    • v.24 no.4
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    • pp.453-462
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    • 2018
  • Purpose: This study analyzed how the four nurse-related news items 'talent show,' 'neonatal death,' 'nurse's death,' and 'sexual harassment' were portrayed in Korean daily newspaper articles. Methods: A total of 392 newspaper articles published from November 2017 to May 2018 were retrieved through the internet homepages of three newspapers, the Chosun Ilbo, the Dong-a Ilbo, and the JoongAng Ilbo and through a database for 13 other newspapers. Articles were analyzed for their views on nurses and their structural and contextual frames. Results: Articles with the highest frequency of mentioning nurses' death appeared in the JoongAng Ilbo; these were written as straight news articles. In the analyzed articles, nurses were portrayed mostly as victims, troublemakers, passive, or selfish. Articles were written mostly in episodic, incident notice, or attribution of responsibility frames. Conclusion: It was not uncommon to read articles with negative views on nurses; most of these articles focused only the four major incidents as straight news type stories. Future efforts are needed to study the implications of newspaper articles with negative views on nurses and the frames most commonly used.

Monocrotophos poisoning in wild mallards (Anas platyrhynchos)

  • Shim, Hang-Sub;Kim, Hae-Sung;Woo, Jong-Tae;Kim, In-Seop;Jung, Hae-Sun;Song, Eun-Ah;Bark, Jun-Jo
    • Korean Journal of Veterinary Service
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    • v.30 no.4
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    • pp.545-550
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    • 2007
  • The toxicity of organophosphate arises from disruption of the nervous system due to the inhibition of cholinesterase enzymes, leading to death. Six dead mallards were found at Ansung where is one of the most popular wintering sites for migratory birds in Korea, and requested for diagnosis to Gyeonggi Veterinary Service on January of 2007. Some examinations including polymerase chain reaction (PCR) could not find any evidence of specific disease condition. However, the contents of gastrointestinal tracts of the birds contained residues of monocrotophos ranged from 31.3ppm to 294.3ppm by gas chromatography and mass spectrometry. It can be supposed that monocroptophos was responsible for the death of mallards by this results.

Aesthetical Approach for Developing Church Furniture Design (교회가구 디자인개발을 위한 조형적 접근)

  • Kim, Kwang-Roul
    • Journal of the Korea Furniture Society
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    • v.16 no.2 s.30
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    • pp.37-47
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    • 2005
  • The approach for designing Church furniture has to be different from that of mass production. church furniture has to be harmonized with an interior space and a church building. Since each church has different pursues and emphases on doctrines, a designer must understand the contents of Holly Bible and uses them as symbolic images. This study analyzes the characteristics and the meanings of patterns and colors in church furniture in general, which embraced to a design direction. There are two different situations on a death in Holy Bible which is the Resurrection and the Gate in heaven that would enter after a death. In this study, based on these two as sources of inspiration, furniture design emphasizes aesthetical uses of sources and Korean images. With technical drawings, scaled models, and prototypes, this study searches for a new direction for Korean church furniture and suggests a distinctive church space.

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