• Journal of Information Processing Systems
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• v.7 no.1
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• pp.173-186
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• 2011

Due to the disadvantages of signature-based computer virus detection techniques, behavior-based detection methods have developed rapidly in recent years. However, current popular behavior-based detection methods only take API call sequences as program behavior features and the difference between API calls in the detection is not taken into consideration. This paper divides virus behaviors into separate function modules by introducing DLLs into detection. APIs in different modules have different importance. DLLs and APIs are both considered program calling resources. Based on the calling relationships between DLLs and APIs, program calling resources can be pictured as a tree named program behavior resource tree. Important block structures are selected from the tree as program behavior features. Finally, a virus detection model based on behavior the resource tree is proposed and verified by experiment which provides a helpful reference to virus detection.

• Journal of Environmental Health Sciences
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• v.32 no.4 s.91
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• pp.336-341
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• 2006

The biological wastewater treatment system is known to have an important role in reducing the quantify of enteric virus in water environments. To clarify the roles of activated sludge microbes in decreasing the virus infectivity, the behavior of the virus in bacteria, protozoa, and metazoa was examined by pure or mixed culture system using poliovirus type 1(Lsc, 2ab strain). In the bacterial culture systems, the virus infectivity in the liquid phase decreased by a reversible adsorption of the virus to the bacteria or bacterial flocs. On the other hand, in the protozoa and the metazoa culture systems using T. pyriformis and P. erythrophthalma, respectively, with a variety of bacterial strains as prey, the main virus decrease mechanism of reversible adsorption in early stage was changed to irreversible predation, which was not eluted in this study. The virus decrease was more effective in the P. erythrophthalma culture system, which had high predation and floc forming abilities. However, in the mixed culture system of Z. ramigera and P. erythrophthalma, the more rapid reversible adsorption of virus to Z. ramigera flocs preceded the irreversible predation of P. erythrophthalma.

• Journal of muscle and joint health
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• v.28 no.3
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• pp.209-216
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• 2021

Purpose: This study aimed to determine the effect of knowledge and attitudes of preventive behavior plans (PBPs) on Zika virus infection among university students. Methods: Participants included 130 students from H University in Korea. Electronic self-reported questionnaires were used to collect data. Data were analyzed using descriptive statistics, t-test, ANOVA, Pearson's correlation coefficient, and regression analysis with SPSS/WIN 23.0. Results: The mean percentile score for knowledge was 35.52±20.63. The mean scores for attitudes and PBPs were 3.31±0.47 and 3.07±0.72, respectively, out of 5 points. Knowledge (t=-5.79, p<.001), attitudes (t=-3.17, p=.002), and PBPs (t=-2.67, p=.009) differed significantly with respect to awareness concerning Zika virus infection. The factor 'attitudes' significantly affected PBPs, with an R² value of 12.0% (β=.27, p<.001). Conclusion: Developing a correct attitude toward Zika virus infection may be key to improving preventive behaviors. Health education messages should be tailored to increase preventive behaviors against Zika virus infection. Nursing educators will benefit from partnerships with health educators and by using internet media to speed up the dissemination of Zika virus information.

• Journal of Digital Convergence
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• v.13 no.9
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• pp.313-321
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• 2015

The purpose of this study was to identify the knowledge level, health beliefs related to HPV vaccination and HPV preventive behavior intention of human papilloma virus among health college student in Korea. A quantitative, descriptive design was used to study 264 students in D-city, M-city recruited from June 1 to June 15, 2014. The data were analyzed SPSS 21.0 program. The average level of HPV knowledge, health beliefs related to HPV vaccination and HPV preventive behavior intention about human papilloma virus were relatively low. No correlation between HPV knowledge and health beliefs. But health beliefs related to HPV vaccination have risen even higher degree of infection prevention behaviors. Therefore, it is necessary for specific methods, such as education programs, including HPV knowledge to improve future health beliefs related to HPV vaccination and HPV preventive behavior intention of human papilloma virus.

• Journal of the Korea Society for Simulation
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• v.15 no.4
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• pp.1-10
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• 2006

Computer virus modeling and simulation research has conducted with focus on the network vulnerability analysis. But computer virus shows the biological virus characters such as proliferation, reproduction and evolution. Therefore it is necessary to research the computer virus modeling and simulation using the Artificial life technique. The approach of computer modeling and simulation using Artificial life provides the analysis method about the effects on the network by computer virus and the behavior mechanism of computer virus. Hence this paper proposes the methodology of computer virus modeling and simulation using Artificial life, which is effected to contribute the research on the computer virus vaccine.

• The Journal of the Korea Contents Association
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• v.19 no.1
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• pp.223-233
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• 2019

The purpose of this study is to identify factors that influence HPV(human papilloma virus) vaccination intention and behavior for mothers with a teenage daughter as the subject of HPV vaccine free inoculation from 2016 based on the theory of planned behavior. For attitude, subjective norm, perceived behavior control, intention, we used a tool modified and supplemented by Hye-Min Park, Hyu-Ei Oh. from June to September 2017, data of 249 people were collected and analyzed by SPSS Statistics 21.0 program. The results of this study showed that the factors affecting the HPV vaccination intention of the subject were attitude, subjective norm, perceived behavior control in order. In addition, the factors influencing HPV vaccination behavior were found to be level of education, subject's vaccination status, recommendation of health care provider, vaccination status of surrounding people, intention etc. Therefore, in order to increase the vaccination rate, we need to find a way to consider the factors influencing vaccination behavior and maximize the vaccination rate.

• The KIPS Transactions:PartC
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• v.9C no.2
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• pp.149-156
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• 2002

Current vaccine program which scans virus code patterns has a difficult to detect the encrypted viruses or polymorphic viruses. The decryption part of polymorphic virus appears to be different every time it replicates. We must monitor the behavior of the decryption code which decrypts the body of the virus in order to detect these kinds of viruses. Specialty, it is not easy for the existing methods to detect the virus if the virus writer has modified the loop count of execution intentionally. In this paper, we propose an advanced emulator using a new algorithm so as to detect various kinds of polymorphic viruses. As a result of experiment using advanced emulator, we found that our proposed method has improved the virus detecting rate about 2%. In addition, our proposed system has a merit that it runs on not only MS-Windows but also Linux, and Unix-like Platform.

• Korean journal of applied entomology
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• v.19 no.2 s.43
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• pp.67-72
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• 1980

A mosaic virus disease of ginger plant was investigated to determine its virus group on the basis of host range, physical and chemical properties, serological behavior and electron-microscopic morphology. The disease gave rise to yellowsih and dark-green mosaic on the leaves in the early stage and stunted all the leaves as well as rhizomes in the late stage. In the field about 43\% of the plants were observed to be diseased The disease was able to be artificially infected to the ginger plants by the sap and transmission as well as to 23 other species of plants which were known to be the CMV susceptible plants by the sap transmission; Chenopodium amaranticolar, Nicotiana tabaccum var. Havana, cow pea, cucumber, tomato,... etc. The dilution end point of the virus ranged $10^{-4}-10^{-5}$ and the thermal inactivation point $65-70^{\circ}C$. Serological test showed a positive reaction by a CMV antiserum. An electron microscopy of the purified virus showed that the virus particles were spherical with a diameter of $28-32m\mu$. Virus particles from the infected tissue were observed to be free or aggregated in the mesophyll tissue of artificially infected tobacco plant. The mosaic disease of ginger plants were conclusively suggested to the CMV group.

• Biomolecules & Therapeutics
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• v.9 no.1
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• pp.55-62
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• 2001

CJC-50100 is a recombinant hepatitis B virus surface antigen (HBsAg) expressed in yeast. The general pharmacological properties of CJC-50100 were evaluated in mice, rats, dogs and isolated guinea pig ileum. The doses were 0.33~33.3 $\mu$g/kg i.m. for mice and rats and 3.3~9.9 $\mu$g/kg i.v. for dogs. The concentrations of 0.002~0.02 $\mu$g/ml were used for the assay with guinea pig ileum. Intramuscular administration of CJC-50100 at the doses did not alter general behavior and the responses for central nervous system, smooth muscle, gastrointestinal system, cardiovascular and respiratory system, and water and electrolytes excretion. In summary, CJC-50100 had no pharmacological effect in these studies even up to the 100-fold of the expected clinical dose, 20 $\mu$g/man/60 kg.

• Journal of Industrial Technology
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• v.26 no.B
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• pp.163-171
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• 2006

Human immunodeficiency virus type 1 (HIV-1) integrase plays a critical role in the life cycle of the HIV virus. An ability to accurately map its electrostatic potential, and then use this information to predict the manner in which DNA will bind to the active site of the catalytic domain could provide a foundation for inhibitory design. Attempts to discern the crystal structure of HIV-1 integrase have proven problematic, especially in the region of enzymatic activity, that being those residues involved in the catalysis of the integration of viral DNA into the host cell. However, there is a structural correlation in to the region of interest with avian sarcoma virus (ASV), so a homology model utilizing this similarity was constructed to approximate the behavior/structure of the undetermined portions of the HIV-1 integrase crystal. After this model was constructed and its energy minimized, electrostatic calculations were carried out on the substance, so that an electrostatic potential map was constructed. Using this information, it was determined that DNA binding was oriented so as to exploit the regions of positive potential nearby the active site, as well as the positive potential of the magnesium cofactors.