• The Journal of Korean Society for School & Community Health Education
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• 제2권1호
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• pp.19-30
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• 2001

Korea has experiencing outbreaks of food borne illnesses since school feeding programs had been introduced to students. In order to prevent food borne diseases, preventive measures applicable to Korean school system were reviewed. The conclusions are summarized as follows; 1. Raw materials should be purchased through reliable sources in order to ensure the quality of food stuffs in the aspect of food safety and hygiene. 2. The potential causes of food borne illnesses should be carefully identified and control system should be established in order to monitor critical points. 3. Temperature of refrigeration should be monitored and controled continuously in order to safeguard the quality of foods. 4. National and local governments have to provide adequate equipment and utensils to the food establishments of school systems, and public health authorities have to make evaluation of the facilities periodically. The food handlers should be trained in safe food handling and the ways how to prevent food borne illnesses.

• Journal of Veterinary Clinics
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• 제19권1호
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• pp.107-109
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• 2002

An 8-month-old ostrich (Struthio camelus) which had shown lethargy died in 2-day clinical course. Gross necropsy revealed greenish gray mold grow on the wall of thickened air sacs and multiple tiny nodules on the liver. Microscopically, the granulomatous lesions of air sac membrane, lung, and liver contained numerous septate, branching fungal hyphae. The typical conidial heads of fungi were observed in inner membrane of inflammatry thickened air sacs. This case was a chronic and systemic mycotic air sacculitis and pneumonitis caused by Aspergillus fumigatus in a ostrich at a zoo.

• Journal of Veterinary Clinics
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• 제12권1호
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• pp.897-904
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• 1995

Two giant pandas, which come from China have been roared in Yong-in Farmland zoo since 1994. One of them, which is female and 2 years old showed anorexia, mucous diarrhea and severe abdominal pain. It revealed neutrophilia and hypokalemia which suggested inflammation and loss of electrolytes by diarrhea. The mucous material contained intestinal mucoid epithelim which was infected Gram negative bacilli and infiltrated with neutrophils. The antibacterial therapy with nafcillin and ampicillin was not successful. Yersinia entrocolitica was implicated as a causative organism in the occurrence of bacterial enteritis. This organism had resistance to ampicillin, chlorampenicol, cefalothin, tetracycline, trimetoprim-sul-famethoxazole, erythromycin, gentamicin, kanamycin, carbanicillin and danofloxacin. It responded to the simultaneous administration of cefopherazone, flunixin-meglumine, physiological saline, Lactate Rainger's solution, sodium bicarbonate, KCL and vitamins and recovered after a period of 30days.

• Journal of Welding and Joining
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• 제25권6호
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• pp.44-52
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• 2007

A welding process of a lifting lug for lifting heavy objects is one of the important welding processes directly related to the safety in shipbuilding. Welding a lifting lug is done in the manually and takes about forty minutes. Working environment for the lifting lug welding is very poor due to an radiant heat and a harmful fume. The purpose of this study is to develop methods of multi-pass welding using the lifting lug welding robot system. This study shows robot welding methods to achieve proper corner, straight and connection welding and an effectiveness of application.

• Korean Journal of Veterinary Research
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• 제51권2호
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• pp.159-164
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• 2011

Alcohol abuse and its medical and social consequences are a major health problem in many areas of the world. Korean red ginseng (KRG) has been traditionally used for the treatment of liver disease. This study was conducted to evaluate the hepatoprotective effects of KRG against hepatotoxicity in Sprague- Dawley rats treated with ethanol (EtOH). Administration of EtOH for 20 days induced significant changes in serum biochemical parameters (aspartate aminotransferase, alanine transaminase, and glucose) accompanied by histological changes in the liver tissue. Treatment with KRG prior to administration of EtOH inhibited the EtOH-induced biochemical and histological changes of the liver. In perfused rat livers, administration of EtOH caused an increase in lactate dehydrogenase (LDH) release into the perfusate and activated the pro-apoptotic Bax protein but inhibited the anti-apoptotic Bcl-2 protein. Pretreatment with KRG prior to administration of EtOH decreased the EtOH-induced LDH release and inhibition of Bcl-2 protein. These results suggest that KRG exerts anti-apoptotic effects and alleviated EtOH-induced liver injury in rats.

• Journal of Microbiology
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• 제33권3호
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• pp.201-207
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• 1995

We have previously reported that SPP2 gene product of yeast Saccharomyces cerevisiae is involved in the pre-mRNA splicing. To investigate the rol ein the splicing pathway of the Spp2p protein, the SPP2 gene was overexpressed in Escherichia coli and polyclonal antibodies to Spp2p were generated from rabbits. First, a DNA fragment containing the SPP2 GENE without its promoter was subcloned into an E. coli expression vector, pKK233-3. The resulting recombinant plasmid pBQ14 contained an IPTG inducible tac promoter and the SPP2 structural gene. Overexpression of the SPP2 gene was achieved by additionof 0.1 to 1.0 mM IPTG to a logarithmic culture of E. coli JM103(pBQ14) for 90 min at 37.deg.C. Sequence of N-terminal 15 amino acids of the overproduced protein was well matched to the deduced one from the SPP2 reading frame. Then, polyclonal antibodies were generated from rabbits immunized with gel-purified SppSp protein. These antibodies reacted specifically with the Spp2p protein extracted from yeast cells expressing the SPP2 gene to a great extent. The antibodies could also block the activity of yeast splicing extracts.

• The Korean Journal of Zoology
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• 제35권3호
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• pp.263-270
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• 1992

Responses of immunoreactive atrial natriuretic peptide (ir-ANP) to environmental temperature were studied in the freshwater catfish, Silums usotus, acclimated at various temperatures for one week. According to increase in environmental temperature, plasma sodium and chloride concentrations, and osmolality were significantly increased, while hematocrit showed a marked decrease. When the catfishes frere acclimated at cold $(3^{\circ}C)$ or warm $(18^{\circ}C)$ temperatures, ir-ANP contents in the atrium and bulbus arteriosus were significantly lower than those at $9^{\circ}C.$ However, ventricular contents of ir-ANP urere not different among the three groups.Levels of plasma ir-ANP in the catfish increased in response to the increment of acclimated temperature. On the basis of these results, we suggest that the environmental temperature may modulate synthesis and secretion of ir-hUP in the fish. We also suggest that changes of plasma ir-ANP levels may be associated with the control of body fluid homeostasis.

• Journal of Preventive Veterinary Medicine
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• 제41권3호
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• pp.121-123
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• 2017

The hepatitis E virus (HEV) is a leading causative agent of acute hepatitis in humans. Zoonotic HEV strains have been isolated from several animal species, including pigs. New HEV variants have been recently isolated from camels in the Middle East. In the present study, fecal samples from fallow deer, formosan deer, alpaca, and guanaco were analyzed for the detection of HEV. One HEV strain was detected from guanaco, a species of camelids. The nucleotide sequence of guanaco HEV was identical to those of deer HEV-3 strains, which implied the cross-species transmission of HEV-3 from deer to guanaco.

• Korean Journal of Veterinary Service
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• 제44권2호
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• pp.119-124
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• 2021

The report describes an avian mycobacteriosis in a captive wild bird. A 7-year-old female Indian peafowl (Pavo cristatus) maintained in a zoo of Korea presented a gradual cachexia and eventually was found dead. At necropsy, severely atrophied pectoral muscles exposing the keel bone were noticed. Yellowish thick nodules in varying sizes were scattered in all lobes of lungs, liver and spleen, suggesting mycobacteriosis. Histopathologically, multifocal to coalescing granulomas surrounded by multinucleated giant cells were observed. Numbers of acid-fast bacilli were revealed in granulomas. Then, a series of molecular diagnostic techniques were followed: a nested PCR, DNA sequencing and bioinformatics analysis. It resulted as Mycobacterium genavense. The identification of M. genavense as an etiological agent suggested that it might serve as a risk factor for other captive wild animals, and for a potential zoonotic risk since M. genavense have been a definite cause of disseminated mycobacterial infection in immunocompromised people. To the authors' knowledge, this is the first report of avian mycobacteriosis with M. genavense in a captive Indian peafowl.

• Journal of Korea Multimedia Society
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• 제24권5호
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• pp.642-650
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• 2021

Strabismus is one of the most common disease that might be associated with vision impairment. Especially in infants and children, it is critical to detect strabismus at an early age because uncorrected strabismus may go on to develop amblyopia. To this end, ophthalmologists usually perform the Hirschberg test, which observes corneal light reflex (CLR) to determine the presence and type of strabismus. However, this test is usually done manually in a hospital, which might be difficult for patients who live in a remote area with poor medical access. To address this issue, we propose an automatic strabismus screening method that calculates the CLR ratio to determine the presence of strabismus based on image processing. In particular, the method first employs a pre-trained face detection model and a 68 facial landmarks detector to extract the eye region image. The data points located in the limbus are then collected, and the least square method is applied to obtain the center coordinates of the iris. Finally, the coordinate of the reflective light point center within the iris is extracted and used to calculate the CLR ratio with the coordinate of iris edges. Experimental results with several images demonstrate that the proposed method can be a promising solution to provide strabismus screening for patients who cannot visit hospitals.