• 한국지역사회생활과학회지
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• 제19권4호
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• pp.547-558
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• 2008

The purpose of this study was to identify a couple's parental efficacy combination and, then, analyze parental role-sharing and parenting stress according to this combination type. The subjects were 307 couples who have a child in 1st or 2nd grade. The main results were as follows: First, fathers and mothers, as a group, did not differ in terms of parental efficacy. Secondly, some demographic variables related to parental efficacy. Thirdly, there are more couples who have similar levels of parental efficacy than those who have different levels of parental efficacy. Fourth, no significant difference in parental role-sharing was found among the 4 types of couple's parental efficacy. Fifth, mothers had low parental stress when both of the couple had high levels of parental efficacy while fathers perceived low parental stress if only he, himself, had a high level of parental efficacy.

• Journal of Magnetics
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• 제14권4호
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• pp.147-149
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• 2009

We report the exchange bias in antiferromagnet/ferrimagnet $Cr_2O_3/Fe_3O_4$ core/shell nanoparticles. The magnetic field hysteresis curve for $Cr_2O_3/Fe_3O_4$ nanoparticles after field-cooling (FC) clearly showed both horizontal ($H_{EB}{\sim}$610 Oe) and vertical (${\Delta}M{\sim}$5.6 emu/g) shifts at 5 K. These shifts disappeared as the temperature increased toward the Neel temperature of $Cr_2O_3\;(T_N{\sim}$307 K). The $H_{EB}\;and\;{\Delta}M$ values were sharply decreased between the $1^{st}\;and\;the\;2^{nd}$ magnetic field cycles, and then slowly decreased with further cycling. These results are discussed in terms of the formation of single domains with pinned, uncompensated, antiferromagnetic spin and their evolution into multi-domains with cycling.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제42권5호
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• pp.307-314
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• 2016

We report a case of retiform hemangioendothelioma (RH) located in the infratemporal fossa and buccal area in a 13-year-old Korean boy. The tumor originated from the sphenoid bone of the infratemporal fossa area and spread into the cavernous sinus, orbital apex, and retro-nasal area with bone destruction of the pterygoid process. Tumor resection was conducted via Le Fort I osteotomy and partial maxillectomy to approach the infratemporal fossa and retro-nasal area. The diagnosis of RH was confirmed after surgery. In the presented patient, surgical excision was incomplete, and close follow-up was performed. There was no evidence of expansion or metastasis of the residual tumor in the 8 years after surgery. In cases of residual RH with low likelihood of expansion and metastasis, even though RH is an intermediate malignancy, close follow-up can be the appropriate treatment choice over additional aggressive therapy. To date, 29 papers and 48 RH cases have been reported, including this case. This case is the second reported RH case presenting as primary bone tumor and the first case originating in the oromaxillofacial area.

• 한국식품조리과학회지
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• 제30권3호
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• pp.307-316
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• 2014

This study was carried out in order to investigate the quality characteristics of baguette with different amounts of yeast and fermented rice bran sourdough(Control: Yeast 30 g + Fermented rice bran sourdough 0 g, A sample: Yeast 20 g + Fermented rice bran sourdough 150 g, B sample: Yeast 10 g + Fermented rice bran sourdough 300 g, C sample: Yeast 0 g + Fermented rice bran sourdough 450 g). The pH of fermented rice bran sourdough by fermentation time was decreased as the fermentation time was longer. The pH of baguette dough was decreased as the fermented rice bran sourdough increased; the volume was the highest in control at the 1st fermentation, and in the B sample at the 2nd fermentation. The weight of baguette was the highest in the C sample, and the volume and specific volume were the highest in the B sample. The microstructure of the cross section analysis indicated that the air cell of baguette crumb was large and regular in the B sample. The moisture content and water binding capacity were the highest in the B sample, although significantly different. The L value was decreased as there was an increasing addition ratio of fermented rice bran sourdough; further, the a and b values were decreased with an increase in baguette volume. Hardness, gumminess and chewiness were decreased as volume and specific volume were increased; yet, springiness was increased. According to the result of the sensory evaluation, the flavor, taste, appearance and texture were the highest in the B sample.

• 실천공학교육논문지
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• 제13권2호
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• pp.293-300
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• 2021

이 연구는 테크놀로지 교수 내용 지식(TPACK)에 대한 예비 교사의 인식을 측정하기 위해 실시되었다. 충청북도에 위치한 A대학교의 재학생 307명이 테크놀로지 교수 내용 지식(TPACK) 척도에 응답한 결과를 분석에 활용하였다. 분석 과정에서 IBM SPSS 21 프로그램을 사용하였으며, 독립표본 t검증, 일원변량분석, 중다회귀분석(Enter 방식)을 실시하였다. 연구 결과는 다음과 같다. 첫째, 성별에 따른 평균 차이 분석 결과, 교수 지식(PK), 교수 내용 지식(PCK), 테크놀로지 교수 지식(TPK), 테크놀로지 교수 내용 지식(TPACK)에서 여학생 평균이 남학생보다 높게 나타났다. 둘째, 학년별 평균 차이 분석 결과, 내용 지식(CK)의 경우 1학년, 3학년과 4학년의 평균이 2학년보다 통계적으로 유의한 수준에서 높게 나타났다. 셋째, 테크놀로지 교수 내용 지식(TPACK)에 대해 β값이 교수 지식(PK)은 .11, 교수 내용 지식(PCK)은 .11, 테크놀로지 교수 지식(TPK)은 .715로써 통계적으로 유의한 예측 변인으로 나타났다. 끝으로 연구 결과를 바탕으로 TPACK 실행 매뉴얼 및 워크북 개발과 다양한 테크놀로지 실습 기회 제공 등의 논의점을 제시하였다.

• 디지털융복합연구
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• 제19권2호
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• pp.307-314
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• 2021

본 연구는 척추·관절질환 환자 만족도와 병원 추천 의향을 분석하고 만족도에 영향을 미치는 요인을 확인하기 위해 수행되었다. 이에 2019년 서울지역 소재 척추·관절 전문병원에서 환자 만족도와 추천 의향을 조사하였고, 인구·사회적 특성과 환자 만족도와의 관련성, 만족도 영향요인 및 추천 의향 등을 분석하였다. 분석 결과 외래의 경우 직원 용모·복장의 단정함과 청결도, 직원 친절도, 시설환경 쾌적성에서 환자 만족도가 높게 나타났고, 대기시간 관련 문항에서 환자 만족도가 낮게 나타났다. 입원의 경우 간호 영역과 병원환경 영역에서 여성의 만족도가 높았다. 하위 영역별로는 간호 영역 중 고객 존중 및 예의, 고객 경청, 담당 간호사에서 환자 만족도가 높게 나타났고, 병원환경 영역은 전반적인 병원 청결도와 안전 문항에서 만족도가 높았다. 환자 만족도와 주변에 해당 병원을 추천할 의향이 있는지를 묻는 문항 간 상관관계 분석에서는 환자 만족도와 병원 추천 의향은 양의 상관관계가 있는 것으로 나타났다. 척추·관절 질환 환자 만족도와 추천 의향 평가 결과는 척추·관절 전문병원에서 의료서비스 질 향상과 병원경영 전략 수립을 위한 기초 자료로 활용될 수 있을 것이다.

• 문화기술의 융합
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• 제8권1호
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• pp.307-312
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• 2022

4차 산업혁명과 21세기 지식정보사회의 혁신적인 변화에 발맞춰 2015 개정 교육과정이 적용된 교육 현장은 다양한 교수학습 방법을 고민해야 하는 상황에 직면해 있다. 그중 미래 교육에 적합한 플립러닝을 적용한 교수설계에 대한 관심이 높아지고 있으나, 실제 음악과 교육에서 플립러닝을 활용한 수업에 대한 연구는 드문 실정이다. 현재 초등 교육 현장에서 이루어지고 있는 일반적인 음악과 수업에서는 해당 차시에 목표로 하는 음악적 기능을 익히기에 부족한 상황이다. 이에 본 연구는 설계개발 연구 방법론을 활용하여, 체제적 교수설계 모형인 ADDIE 모형을 바탕으로 플립러닝을 적용한 초등학교 음악과 수업을 위한 교수설계 모형을 개발하고 타당화를 진행하였다. 개발된 교수설계 모형을 바탕으로 각 단계별 주요 사항에 대해 제시하였으며, 개발 과정에서의 주요 교육적 시사점을 논의하였다.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제27권4호
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• pp.307-314
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• 2005

After dental implant are planted into their bony site among the various growth factors associated with bone formation. BMP is expressed in the bone surrounding the implant fixture. By taking a close look at BMP2, BMP4 which are growth factors that take put in bone formation, its histologic features and radiographic bone healing patterns we would like to examine the mechanism of osseointegration. We randomly used 8 male and female house rabbit amd used diameter 5 mm height spiral shaped implants(Ostem, Korea) for animal use handled as a resorbable blast machined(RBM) surface and machined surface. 2group were formed and each group had RBM surface and machined surface implant or a simple bone cavity. After 3, 7, 14 and 28 days post surgery 2 objects were sacrificed from each group and histologic specimens were acquired. RT-PCR analysis was conducted and after H&E staining the extent of osseointegration was measured applying a histologic feature and histomorphometric analysis program. Quanitity one -4.41(Bio-Rad, USA) was used after scanning the PCR product image of the growth factors manifested in each group. According to the histomorphometric features the RBM, Machined surface group showed increased contact between bone and implant surface at 3, 7, 14 and 28 days after surgery. The BMP2 level increased in both experiment groups but remained unchanged in the contrast group. BMP4 levels stayed steady after the early post implantation period for RBM but showed decreased in the machined surface group and contrast group. The amount of contact between bone and implant surface increased with the passage of time. BMP2, BMP4 were expressed in both experimental group and contrast group. These growth factors play a role in osseointegration of implant.

• Journal of Periodontal and Implant Science
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• 제43권6호
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• pp.301-307
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• 2013

Purpose: This in vitro study was performed to assess the adherence of Porphyromonas gingivalis to a resorbable blast media (RBM) titanium surface pretreated with an ultrasonic scaler or toothbrush and to evaluate the effects of the treatment of the RBM titanium discs on the bacterial removal efficiency of brushing by crystal violet assay and scanning electron microscopy. Methods: RBM titanium discs were pretreated with one of several ultrasonic scaler tips or cleaned with a toothbrush. Then the titanium discs were incubated with P. gingivalis and the quantity of adherent bacteria was compared. The disc surfaces incubated with bacteria were brushed with a toothbrush with dentifrice. Bacteria remaining on the disc surfaces were quantified. Results: A change in morphology of the surface of the RBM titanium discs after different treatments was noted. There were no significant differences in the adherence of bacteria on the pretreated discs according to the treatment modality. Pretreatment with various instruments did not produce significant differences in the bacterial removal efficiency of brushing with dentifrice. Conclusions: Within the limits of this study, various types of mechanical instrumentation were shown to cause mechanical changes on the RBM titanium surface but did not show a significant influence on the adherence of bacteria and removal efficiency of brushing.

• Journal of Veterinary Science
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• 제22권2호
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• pp.17.1-17.13
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• 2021

Background: Klebsiella spp. is an important conditional pathogen in humans and animals. However, due to the indiscriminate use of antibiotics, the incidence of antimicrobial resistance has increased. Objectives: The purpose of this study was to investigate antimicrobial resistance in strains of Klebsiella strains and the phylogenetic relatedness of extended-spectrum cephalosporin (ESC)-resistance among Klebsiella strains isolated from clinically ill companion animals. Methods: A total of 336 clinical specimens were collected from animal hospitals. Identification of Klebsiella species, determination of minimum inhibitory concentrations, detection of ESC resistance genes, polymerase chain reaction-based replicon typing of plasmids by conjugation, and multilocus sequence typing were performed. Results: Forty-three Klebsiella strains were isolated and, subsequently, 28 were identified as K. pneumoniae, 11 as K. oxytoca, and 4 as K. aerogenes. Eleven strains were isolated from feces, followed by 10 from ear, 7 from the nasal cavity, 6 from urine, 5 from genitals, and 4 from skin. Klebsiella isolates showed more than 40% resistance to penicillin, cephalosporin, fluoroquinolone, and aminoglycoside. ESCresistance genes, CTX-M groups (CTX-M-3, CTX-M-15, and CTX-M-65), and AmpC (CMY-2 and DHA-1) were most common in the K. pneumoniae strains. Some K. pneumoniae carrying CTX-M or AmpC were transferred via IncFII plasmids. Two sequence types, ST709 and ST307, from K. pneumoniae were most common. Conclusions: In conclusion, this is the first report on the prevalence, ESCresistance genotypes, and sequence types of Klebsiella strains isolated from clinically ill companion animals. The combination of infectious diseases and antimicrobial resistance by Klebsiella in companion animals suggest that, in clinical veterinary, antibiotic selection should be made carefully and in conjunction with the disease diagnosis.