• Parasites, Hosts and Diseases
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• v.57 no.2
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• pp.197-200
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• 2019

Cryptosporidium is a common intestinal protozoan that can lead to diarrhea in humans and dogs. The predominant species of infection are C. hominis and C. parvum in humans, and C. canis in dogs. However, C. canis can infect immunocompromised humans. Considering the close contact with humans, dogs have the potential to be reservoirs for human cryptosporidiosis. Breeding kennels are the major supply source of puppies for pet shops. The present study is to determine the molecular prevalence and characteristics of Cryptosporidium spp. found in breeding kennel dogs. A total of 314 fecal samples were collected from young and adult dogs kept in 5 breeding kennels. A polymerase chain reaction targeting the small subunit rRNA gene was employed for the detection of Cryptosporidium spp. To determine the species, the DNA sequences were compared to GenBank data. Overall, 21.0% of the fecal samples were positive for Cryptosporidium spp. infection. Cryptosporidium spp. was detected in all 5 facilities. A sequencing analysis demonstrated that all isolates shared 99-100% similarity with C. canis. The results suggest that Cryptosporidium spp. infection is present at a high-level in breeding kennel dogs. However, because dominant species in this survey was C. canis, the importance of breeding kennel dogs as reservoirs for Cryptosporidium spp. transmission to humans is likely to be low in Japan.

• The Journal of the Korea Contents Association
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• v.22 no.7
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• pp.290-306
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• 2022

The purpose of this study was to look how workaholism regulates the effect on the relation between the perfectionism types - self-oriented perfectionism (SOP), other-oriented perfectionism (OOP), Socially prescribed perfectionism (SPP) - and burnout. To do this study, 250 data collected from people who would be over 20 years old in the country using Korean Version of Hewitt's Multidimensional Perfectionism Scale, Korean Version of Workaholism Battery, Maslach Burnout Inventory. To analyze the result of the questionnaire survey, Descriptive statistic, correlation analysis, t-test, regression analysis, two-way ANOVA were performed using SPSS. As a result, the interaction between SPP and workaholism showed the meaningful effect on burnout. In other words, while SPP lower group experiences less cynicism regardless of the degree of workaholism, SPP upper group experiences noticeable more cynicism when they are in the lower workaholism group, suggesting that workaholism may have a positive effect of making someone experience less burnout.

• Korean Journal of Veterinary Service
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• v.26 no.1
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• pp.33-37
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• 2003

In order to monitor the parasites, 501 fecal samples were taken from rabbits in Jeonbuk area. The isolation and identification of the parasites were determined by the fecal examination using the flotation and microscopical examination, respectively. The detection rate of the parasites from rabbits was 51.6%. A seasonal infection rates of internal parasites was 55.6% in the Summer and 46.1% in the Winter. The infection rates of single, double and triple were 36.7%(184 heads}, 7.2%(36 heads), and 0.8%(4 heads), respectively. Parasites were identified as Eimeria spp from 196 heads, Passalurs spp from 25 heads, Strongylus spp from 16 heads, Trichostrongylus spp form 15 heads, and Grapidium spp from 7 heads, in order.

• Journal of Environmental Health Sciences
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• v.30 no.4
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• pp.344-346
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• 2004

During a survey of the helminth parasites of fresh water fishes in Willamette River, metacercariae of Neascus spp. were found on examination of muscle, spinal cord, fin and skin of Chiselmouth, Acrocheilus alutaceus. One hundred percent of 19 Chiselmouth examined were found to be infected with digenetic trematodes. The prevalence of infection was higher in muscle, varying from $95\%\;and\;100\%$. Higher levels were present in muscle, such that the $100\%$ level being found in upper anterior, lower anterior and posterior. Small numbers of metacercariae were found on the fin and skin. The commonest sites of infection were the musculature and spinal cord. Intensities of Neascus spp. metacercariae tended to be and high levels in muscle and spinal cord. Those were low levels occurred in the fin and skin. There was a high degree of Neascus spp. in the occurrence of digenetic trematode from Chiselmouth.

• Journal of environmental and Sanitary engineering
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• v.10 no.3
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• pp.35-44
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• 1995

This study was carried out in order to compare the methods for Salmonella spp. isolation from sewage and to settle the most appropriate conditions for that isolation. The direct enrichment method was more effective than the pre- enrichment method for Salmonella spp. isolation. The rate of detection was much higher when the specimens were enriched at $41.5^{\circ}C$ than when at $35^{\circ}C$. Usage of XLBG agar medium showed better results for Salmonella isolation than that of SS medium. It can be suggested that the most effective combination for Salmonella spp. isolation was the direct centrifugation(3,000 rpm 100m1)- direct enrichment($41.5^{\circ}$C)-usage of XLBG medium.

• Korean Journal of Veterinary Service
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• v.23 no.1
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• pp.39-44
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• 2000

In order to monitor the parasites 426 fecal samples were taken from deer in Chonbuk area. The identification of the parasites was determined by the fecal examination using the floatation and microscopical examination, respectively. The results were summarized as follows; The detection rate of the parasites was 23.2%. Mixed infection rate was single 20.3% (87 heads), double 2.6% (11 heads), triple 0.2% (1 heads), respectively. The parasites isolates were identified as heamonchus spp from 40 heads, eimeria spp from 24 heads, trichoetrongyius spp from 13 heads, capiliaria spp from 9 heads, parapsitomum spp from 8 heads, strongyloides papillosus from 1 head, diotyocaiius fiiaria from 1 head.

• Korean Journal of Microbiology
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• v.25 no.2
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• pp.129-136
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• 1987

Nitrogen fixing activity associated with 40 varieties of rice was assayed at heading stage by an in situ acetylene reduction method. The in situ acetylene reduction activity and population of nitrogen fixing bacteria obtained on nitrogen-free malate medium for Azospirillum spp. enrichment showed positive correlation. Six Azospirillum spp. with high nitrogenase activity were isolated from the rice roots, from which five spp. were identified as A. lipoferum and one was A. brasilense. The physiological characteristics of the six Azospirillum isolates, that is, carbon source utilization, biotin requirement, antibiotic resistance, indole acetic acid excretion, plasmid profile and protein patterns were compared.

• Journal of Institute of Control, Robotics and Systems
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• v.22 no.3
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• pp.217-225
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• 2016

In this paper, we propose an improved path planning method and obstacle avoidance algorithm for two-wheel mobile robots, which can be effectively applied in an environment where obstacles can be represented by circles. Firstly, we briefly introduce the rapidly exploring random tree (RRT) and single polar polynomial (SPP) algorithm. Secondly, we present additional two methods for applying our proposed method. Thirdly, we propose a global path planning, smoothing and obstacle avoidance method that combines the RRT and SPP algorithms. Finally, we present a simulation using our proposed method and check the feasibility. This shows that proposed method is better than existing methods in terms of the optimality of the trajectory and the satisfaction of the kinematic constraints.

• Korean Journal of Microbiology
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• v.11 no.2
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• pp.63-68
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• 1973

Thirtythree strains of the Aspergillus spp. isolated from foodstuffs were observed through some physiological characteristics for detection of identification key of Aspergillus spp. 1) Each strain of Aspergillus spp. had their specific characteristics and could be used for identification of species. 2) Excellent amylase-producing fungi were observed among the isolated strains of Aspergillus spp. 3) Amylase activities increased for one week incubation period. 4) In the tests of common characters of aflatoxin-producing fungi among the 33 strains of Aspergillus spp., for example, conidial size, presence of sclerotia, kojic acid, and pigment production, coloration of phenol, reduction of methylene blue, etc.

• Journal of the Korea Furniture Society
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• v.27 no.3
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• pp.253-262
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• 2016

Woodcraft activity is inseparable with our ordinary life and its relevant research should be consistently maintained because it has significant educational value to blossoming students. These days, which interest in woodcraft is rapidly expanding from early childhood to old age, this study was done to provide images to those who work in this field or who have interest. Out of the 43 jewelry and gift boxes used in this study, species of white which has low proportion of packing materials consists of species of Fir (Abies spp), Birch (Betula spp) and Amercia basswood (Tilia americana Linnaeus) and the higher proportion species of Mahogany (Swietenia macrophylla), Bayor (Pteorospermum diversifolium Bl), Snakewood (Piratinera guianensis aubl.) and Bintangor (Calophhyllum spp.) were used in valuable products. It was showed that out of 56 works selected from '400 Wood Boxes', the species of Walnut (Juglans regia), Cherry (Prunus serotina), Wenge (Milletia laurentii De. wild), Ebony (Diospyros spp.), Ash (Fraxinus spp.) and Cocobolo (Dallbergia cultrata Grah.) were frequently used.