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        검색결과 101,394

        761.
        2024.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        In this study, we evaluated wound healing following the use of 3% topical povidone ointment in dogs with minor wounds and evaluated it as a new wound treatment applicable to veterinary medicine. Twenty-six dogs that had suffered minor wounds such as abrasions, punctures, and incised wound within 8 hours were recruited, and all treatments were performed with the consent of their owners. Vitality, behavioral symptoms, and dermal symptoms due to wounds were evaluated between the povidone ointment group (n=18) and the control group (chlorhexidine group, n=8). As a result of evaluating changes in vitality and behavior, the povidone ointment group showed improvement to 1.94 (±2.53), 0.61 (±1.34), and 0.39 (±1.24) while the chlorhexidine group showed improvement to 2.00 (±1.6), 0.87 (±0.99), and 0.86 (±0.99) on days 0, 3, and 7 respectively, showing similar improvement in symptoms between the two groups (p>0.05). When observing wound symptoms, most of the swelling and inflammation improved within 3 days. The averages for the chlorhexidine group on days 0, 3, and 7 were 4.88 (±2.85), 2.88 (±2.64), and 2.38 (±2.39), and for the povidone ointment group, 5.55 (±3.22), 3.83 (±3.07), and 1.38 (±1.61), respectively. The wound healing effect of the povidone ointment group was similar to that of the chlorhexidine group (p>0.05). Through this study, we believe that topical povidone ointment can be applied to various wounds by replacing chlorhexidine.
        4,000원
        762.
        2024.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This note summarizes the application of zooplankton indices for water quality management and estimation based on main research topics of articles focusing on wetland ecosystems, topics that are remained poorly investigated in S. Korea. The aquatic ecosystem-based consists of indices that respond to different target environmental factors, including environmental disturbance. Among the major indicator species and biota, we reviewed that management strategy for the wetland environment has to be focused more on small-sizes, in terms of zooplankton ecology and indices. The ecology of zooplankton communities in freshwater ecosystem has been the focus of an increasing number of studies since 2019, and considerable progress has been made in understanding the major mechanisms involved in regulating their abundance, diversity and spatio-temporal patterns. Even though studies on the freshwater ecosystem in Korea have a long history, a few of studies on zooplankton biota were conducted at wetlands. We suggested the candidate zooplankton indices proposed by the U.S. EPA and EU to suit Korean conditions. In the step of selecting metrics, the best available metrics are species-related variables, such as composition and abundance, as well as richness and diversity. Overall, in spite of several limitations, the development of a plankton-based multivariate assessment method in Korea wetlands is possible using mostly field research data. Later, it could be improved based on qualitative metrics on zooplankton, and with the emergence of further survey data. The present information can be used as basic information for researchers who are dealing with aquatic environments and its interaction with organisms.
        4,000원
        763.
        2024.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Silage inoculants, crucial in modern silage production, comprise beneficial microorganisms, primarily lactic acid bacteria (LAB), strategically applied to forage material during ensiling. This study aimed to compare the effectiveness of various inoculants produced by different companies. Five treatments were evaluated, including a control group: T1 (Lactobacillus plantarum), T2 (Lactobacillus plantarum + Pediococcus pentosaceus), T3 (Lactobacillus plantarum + Pediococcus pentosaceus + Lactobacillus buchneri), T4 (Lactobacillus plantarum + Lactobacillus acidophilus + Lactobacillus bulgaricus), and T5 (Lactobacillus plantarum + Pediococcus pentosaceus + Enterococcus faecium). Italian ryegrass was harvested at the heading stage and treated with these silage inoculants. Samples were collected over a 60-day ensiling period. Co-inoculation with L. plantarum and P. pentosaceus (T2) resulted in significantly higher CP compared to the control group co-inoculation exhibited with resulted in Lactobacillus plantarum and Pediococcus pentosaceus in the T2 treatment exhibited higher CP content of 106.35 g/kg dry matter (DM). The T3 treatment, which included heterofermentative bacterial strains such as Lactobacillus buchneri, exhibited an increase in acetic acid concentration (11.15 g/kg DM). In the T4 treatment group, which utilized a mixed culture of Lactobacillus acidophilus and Lactobacillus bulgaricus, the NH3-N/TN content was observed to be the lowest (20.52 g/kg DM). The T5 containing Enterococcus faecium had the highest RFV (123) after 60 days. Expanding upon these findings, the study underscores not only the beneficial effects of particular inoculant treatments on silage quality but also underscores the potential of customized inoculation strategies in maximizing nutrient retention and overall silage preservation.
        4,000원
        764.
        2024.03 KCI 등재 SCOPUS 구독 인증기관 무료, 개인회원 유료
        This paper presents data capturing Korean university students’ familiarity with English online acronyms, examines factors that may predict this familiarity, and presents an explicit instruction intervention involving vocabulary knowledge of online acronyms. The Vocabulary Size Test (VST) measured stude nts’ vocabulary size, while a self-report survey measured social media engagement and the percentage of engagement that occurred in English. The Vocabulary Knowledge Scale (VKS) measured initial familiarity and gains in vocabulary knowledge. The results suggest that English learners in Korean universities are not well-acquainted with English online acronyms, but that receptive vocabulary size and English-language social media engagement may offer some predictive power regarding their level of familiarity. An explicit treatment of acronym expansions and their uses resulted in a significant and robust gain in vocabulary knowledge, suggesting that explicit instruction of online acronyms may improve digital literacy and comprehension of computer-mediated communication (CMC) more effectively than simply relying on incidental gains through repeat exposures over time.
        5,400원
        765.
        2024.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Background: Cadmium (Cd) is toxic heavy metal that accumulates in organisms after passing through their respiratory and digestive tracts. Although several studies have reported the toxic effects of Cd exposure on human health, its role in embryonic development during preimplantation stage remains unclear. We investigated the effects of Cd on porcine embryonic development and elucidated the mechanism. Methods: We cultured parthenogenetic embryos in media treated with 0, 20, 40, or 60 μM Cd for 6 days and evaluated the rates of cleavage and blastocyst formation. To investigate the mechanism of Cd toxicity, we examined intracellular reactive oxygen species (ROS) and glutathione (GSH) levels. Moreover, we examined mitochondrial content, membrane potential, and ROS. Results: Cleavage and blastocyst formation rates began to decrease significantly in the 40 μM Cd group compared with the control. During post-blastulation, development was significantly delayed in the Cd group. Cd exposure significantly decreased cell number and increased apoptosis rate compared with the control. Embryos exposed to Cd had significantly higher ROS and lower GSH levels, as well as lower expression of antioxidant enzymes, compared with the control. Moreover, embryos exposed to Cd exhibited a significant decrease in mitochondrial content, mitochondrial membrane potential, and expression of mitochondrial genes and an increase in mitochondrial ROS compared to the control. Conclusions: We demonstrated that Cd exposure impairs porcine embryonic development by inducing oxidative stress and mitochondrial dysfunction. Our findings provide insights into the toxicity of Cd exposure on mammalian embryonic development and highlight the importance of preventing Cd pollution.
        4,000원
        766.
        2024.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Pepper cultivation requires a great amount of manual labor, especially for varieties needing support stakes to prevent them bending or breaking in heavy winds or rain. In Korea, it is recommended to secure support stakes and string lines carefully, so as to minimize the risk of damage caused by typhoons. The harvesting of peppers is a labor-intensive process with low rates of mechanization.The removal of stakes is particularly time-consuming during mechanical harvesting, and lodging is a major issue during cultivation and mechanical harvesting. Given increased mechanization during pepper harvesting, it is important to consider these issues when undertaking variety development and cultivation method improvements. Further research and development are required to improve cultivation practices and develop pepper varieties that are more resistant to lodging. Therefore, this study aimed to investigate the impact of different cultivation methods on pepper lodging, thus broadening our knowledge on the desirable architecture of pepper plants required for lodging tolerance.
        4,000원
        767.
        2024.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        이 연구의 목적은 기술이 매개하는 비대면 교육 환경에서 학습자의 즉시성이 수업 중 긍정적 정서경험에 미치는 영향성을 확인하는 데 있다. 구체적으로, 수업 중에 경험하는 사회적 실재감이 즉시성과 긍정적 정서 경험 간의 관계 를 매개할 것으로 보았고, 즉시성과 사회적 실재감 간의 관계는 개개인의 기술준비도에 의해 조절될 것으로 예측하 였다. 이를 위하여 비대면 수업에 참여한 경험이 있는 대학생 500여 명을 대상으로 설문조사를 시행하였다. 분석 결과, 즉시성과 긍정적 정서 경험 간의 관계는 사회적 실재감에 의해 완전매개 되었다. 즉, 즉시성이 높은 학생들은 비대면 수업 중에 더 높은 사회적 실재감을 경험했고, 그 결과 부정적인 정서에 비해 긍정적인 정서를 더 많이 경험 하는 경향성을 보인 것이다. 또한 즉시성과 사회적 실재감 간의 관계는 기술준비도에 의해 조절되었다. 본 연구는 교수자의 즉시성이 학습자에게 미치는 긍정적 영향에 관한 기존 연구와 달리, 학습자 자신의 즉시성도 학습 과정에 긍정적 영향이 있음을 증명했다는 점에서 의의를 지닌다. 그 뿐 아니라 팬데믹 이후 변화된 학습자의 참여도와 만족 도 등을 예측하기 위하여 학습자의 커뮤니케이션 능력의 변화를 확인하는 것도 중요한 요인이 될 수 있음을 보인 결과라 하겠다.
        4,300원
        768.
        2024.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study examined the relationship between Body mass index (BMI) classification and the occurrence of dyslipidemia using 3 years of health examination data from a university hospital in Changwon, and seeked to find other factors that affect dyslipidemia. Multivariate logistic regression analysis investigated the most common risk factors for developing dyslipidemia and used Kaplan-Meier survival curves to predict the probability of developing dyslipidemia according to BMI class. We then analyzed the effects of metabolic indicators such as smoking habits, alcohol consumption, blood pressure, glucose, hemoglobin A1c (HbA1c), and insulin. The Type I error rate was controlled through Bonferroni correction for multiple comparisons to extract reliable statistical data. in the present study, these results showed that the probability of developing dyslipidemia was high in the obese group, and confirmed that lifestyle habits such as smoking and drinking were highly correlated with the occurrence of dyslipidemia. Therefore, we suggest that dyslipidemia management and prevention strategies require public health policies that comprehensively manage lifestyle factors such as gender and weight management, smoking cessation, and drinking habits.
        4,000원
        769.
        2024.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        창원시는 질 좋은 철(鐵)을 생산하여 넉넉한 삶과 찬란한 철 기문화를 꽃 피운 전통을 지니며, 우리나라 기계공업의 중심도 시다. 창원시는 “삼한 시대부터 좋은 철이 많이 생산되어 중국 과 일본에까지 수출했다.”는 역사적인 사실에 기반하여 기계공 업을 꽃피운 도시의 의미를 시민 화합의 구심력으로 삼고자 야 철축제(冶鐵祝祭)를 개발하였다. 야철축제에서 가장 상징성 있는 행사가 성산패총(城山貝塚) 에서 시작하는 야철제의(冶鐵祭儀)인데, 이 제례의식에서 추는 5가지 춤(고청무, 강신무, 기원무, 대동무, 천도무)을 통칭해서 기원무라고 한다. 이 명칭은 전래한 것이 아니라, 발굴 후, 체 계를 잡는 과정에서 이름을 붙인 것이다. 본고는 창원야철제 기원무가 창원시의 정체성을 담은 민속문 화유산으로 전승하는데 기초자료를 제공하는 것을 목적으로 이 춤의 기원, 전승, 의상, 무구, 춤사위, 장단, 상징 등에 관하여 무용학적 측면에서 고찰한 것이다. 본고의 연구범위 영상은 창원야철제기원무 여현주 보존회장 이 제공한 영상과 자료를 기반으로 했고, 면접과 대담을 통해 보충하였다.
        6,900원
        770.
        2024.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        목적 : 현재 주목받고 있는 스마트 글라스와 같은 증강현실 기술은 배터리, 발열, 착용감 문제 등으로 사용자의 불편을 야기시킨다. 본 연구는 이러한 문제들을 해결하고 사용자 편의성을 극대화할 수 있는 새로운 NED 광학계 를 설계하고자 한다. 방법 : Waveguide 타입과 비구면 구성을 적용한 허상광학계로 NED 광학계를 설계하였다. Code V 소프트웨어 를 사용하였고, 경량화, 높은 시야각, 낮은 왜곡 수차 및 우수한 이미지 품질을 설계 목표로 하여 비순차 광학계를 구성하였다. 결과 : 설계된 광학계는 배율 증가, 포커싱, 수차 감소에 초점을 맞춘 첫 번째 파트와 빛의 손실을 최소화하는 Waveguide 타입의 두 번째 파트로 구성하여 고효율성과 높은 해상도를 나타내었다. 사용자에게 선명하고 편안한 시각적 경험을 보장하고, 컴팩트한 디자인으로 휴대성과 사용자 편의성이 동시에 고려된 광학계를 설계하였다. 결론 : 본 연구에서 개발된 Waveguide 타입과 비구면 광학계는 빛의 손실을 최소화하여 망막까지 효율적으로 전달함으로써 NED 기술의 성능을 크게 향상시켰다. 이는 사용자에게 더 높은 선명도와 생동감 있는 시각적 경험 을 제공하며, 향후 고해상도 광학 응용 분야에 큰 기여를 할 것으로 판단된다.
        4,000원
        771.
        2024.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        본 연구의 목적은 마이크 니콜스 감독이 2001년 미국에서 개봉한 영화 <위트>에 나타난 죽음의 존엄성과 웰다잉의 필요성에 관한 논의를 수행하는 것이다. <위트>는 존 던의 시적 장치였던 위트, 아이러니, 그리고 역설이 여주인공이 직면한 상황과 연계성을 지니면서 전개된다. 입원하기 전 이성과 냉정, 그리고 학문적 열정을 지니고 저명한 영문학자였던 여주인공은 역설적 상황의 재현 대상으로 활용되고 있다. 이러한 과정은 여주인공이 학문의 주체에서 연구 대상으로 전락한 상황을 드러낸다. 병실에 입원하기 전 여주인공은 인생의 본질과 가치를 열정적 학문 탐구와 냉철함에서 찾고자 했다. 그러나 고통스러운 치료 과정에서 학문 연구의 주체가 아닌 대상으로 전락한 여주인공은 인생의 진정한 가치는 친절함, 배려, 결론적으로 여주인공은 죽음의 주체적 선택을 통해서 독자들에게 위트의 현실 재현, 웰다잉 구현, 그리고 죽음에 대한 새로운 인식을 제공한다.
        5,200원
        772.
        2024.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        생물다양성협약 당사국총회 결의에 따르면, 환경영향평가란 제안된 계획 또 는 개발이 환경에 미칠 것 같은 영향을 이익적 측면과 불리한 측면에서 사회경 제적, 문화적 및 인간의 건강에 미치는 영향과 연계하여 평가하는 과정을 의미한다. 해양에서의 환경영향평가 제도는 다수의 국가에 의해 국내법적으로 수용 하여 수행되어왔으며, 국제적으로도 많은 환경협약과 하위 지침들로부터 의무 화하여 수행되고 있다. 국제법상 국가관할권 이원지역에 대한 환경영향평가의 수행의무는 분명히 존재한다. 최근 채택된 BBNJ협정은 국가관할권 이원지역에 대한 종합적인 환경 및 해양생물다양성 보호를 목적으로 하는데, 그중 제4부는 환경영향평가의 발동요건, 절차, 평가의 내용, 협의과정, 의사결정 등 환경영향 평가 수행 전반에 대한 요건을 서술하고 있다. 본 연구에서는 다수의 환경영향 평가와 관련된 기존제도들 중 국가관할권 이원지역만을 협약의 적용지역으로 하고, 명확히 환경영향평가의 의무를 부과하고 있는 남극조약체제 및 국제해저 기구 주관하의 심해저 광업규칙상 환경영향평가제도와 BBNJ협정상 환경영향 평가제도의 비교를 통해 환경보호의 대응기조가 어떻게 유사하게 반영되었는 지 또는 차이점이 있는지 살펴보고 그 실효성에 대하여 논한다. 결론적으로 1) 기존제도와 달리 BBNJ협정은 call-in mechanism의 적용을 통 해 환경영향평가서에 대한 최종 의사결정권을 당사국에게 부여하고 있다. 2) 국가관할권 내측 지역으로부터의 월경 오염에 대한 환경영향평가 절차를 포함 함으로써 월경오염에 대한 준수의 효과성을 보장하고자 하였다. 3) 대중통고 및 협의, 활동의 영향에 대한 검토 조항을 통해 환경영향평가의 절차에서 넓은 범위의 이해관계자를 포함하고, 기존제도와 달리 국가관할권 이원지역에서의 활동으로부터 야기된 월경오염으로 영향을 받을 수 있는 연안국을 명시하여 환 경영향평가 절차에서 역할을 부여하고 있다. 4) 기존제도상 환경영향평가시 고 려되던 누적영향 및 잔존영향에 더하여 전략환경평가라는 현대적 보전기법을 규정하고 있다. 남극조약체제 및 국제해저기구 주관하의 심해저 광업규칙상 환 경영향평가제도 역시 과거 작성되었던 규칙에 대비하여 비교적 최근의 규칙 및 현재 작성중인 문서에서 대중통고 절차 신설, 확장된 이해관계자의 참여 근거 규정 마련 등에 따라 환경보호를 위한 국제사회의 강화된 기조에 대응하고 있 음을 살펴볼 수 있었다. 향후 당사국 총회를 통해 환경영향평가의 세부 지침이 보완될 것임에 따라, 기존의 관련 제도상 환경영향평가 절차 및 내용에 대한 정확한 숙지를 기반으로 하여 대응해 나가야 할 것이다. 또한 관련 전문기관을 지정하고 과학 전문가 양성에 집중해야 할 것이다.
        7,000원
        773.
        2024.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Lee, En Hye, & Lee, Chee Hye. (2024). “Phonological Aspects of American and British Englishes Embedded in Korean English: A Perspective of Linguistic Realities”. The Sociolinguistic Journal of Korea, 32(1), 43-74. This paper explores the rationale behind the shift from Quirk’s deficit linguistics to Kachru’s liberation linguistics in English widely used in Korea. Despite the Korean government’s efforts to enhance communicative competence aligned with Inner Circle-oriented American Standard English, the study questions the perception of Korean English being solely dominated by American English from sociolinguistic perspectives. To delve into both psychological and empirical perspectives on English in Korea, a questionnaire survey involving 100 Korean college students is employed. The focus is on assessing the extent of influence from both American English and British English on Korean English. Additionally, the study examines how linguistic realities, disregarding sociolinguistic or functional aspects, contribute to the current state of Korean English. The analysis of survey data reveals that Korean linguistics, especially phonology, plays a role in shaping the dynamics of Korean English, supporting Kachru’s liberation linguistics. This contributes to the shift from the stage of aspiring to be more native-like American English to the stage of World Englishes, establishing itself as a variant of English in its own right.
        7,800원
        774.
        2024.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study divided the area capable of producing domestic forage into grazing pasture, hay production area, and silage crop area, calculated the required area according to the forage production volume, and examined whether self-sufficiency in forage leads to cost savings. When the self-sufficiency rate of forage for dairy cows and Hanwoo is 80%, the improvement in profitability per heaf ranges from 3% to 9%, typically around 5%, which is considered a significant benefit for both corporate and individual businesses. The average profit per ranch is expected to increase about KRW 50 million per year, and the country as a whole is expected to reduce forage costs by KRW 0.9 trillion per year. Recently, efforts are being made by the government and local authorities to cultivate summer forage at the rice fields for improving self-sufficiency in forage feed to stabilize rice supply and demand. Furthermore, it is also necessary to conduct research on reducing the cost of concentrated feed and TMR (Total mixed ration).
        4,000원
        775.
        2024.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Background: Sperm quality and the number of sperm introduced into the uterus during artificial insemination (AI) are pivotal factors influencing pregnancy outcomes. However, there have been no reports on the relationship between sperm concentration at AI and sperm quality in Hanwoo cattle. In this study, we examined sperm quality and pregnancy rates after AI using sperm inseminated at different concentrations. Methods: We evaluated the motility, viability, and acrosomal membrane integrity of sperm at different concentrations (10, 15, 18, and 20 million sperm/straw) in 0.5-mL straws. Subsequently, we compared the pregnancy rates after AI with different sperm concentrations. Results: After freeze-thawing, sperm at the assessed concentrations showed similar viability and acrosomal membrane integrity. After AI, cattle in the 10 million group had significantly lower pregnancy rates compared to those in the 18 and 20 million groups. Conversely, there were no statistically significant variances observed between cattle in the 10 and 15 million groups. Conclusions: Sperm at concentrations of 10, 15, 18 and 20 million per straw exhibited comparable motility, viability, and acrosomal membrane integrity. However, a concentration of at least 18 million sperm per straw is required to achieve a consistent rate of pregnancy rate in Hanwoo cattle after AI.
        4,000원
        776.
        2024.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This research investigated the effects of the plant growth regulators (PGRs) on fruit characteristics and storability of ‘Shine Muscat’ grapes. The objective was to identify effective PGR treatment methods for high-quality production and efficient storage. The characteristics of ‘Shine Muscat’ fruits were more affected by the secondary treatment applied 14 days after full bloom than by the primary treatment applied at full bloom. The fruits treated with thidiazuron (TDZ) in the secondary treatment showed higher weight. However, the forchlorfenuron (CPPU) treated fruits exhibited lower acidity and higher soluble solids content, which led to a higher sugar-to-acid ratio. Additionally, it had higher firmness, contributing to a good texture and a brighter yellow-green skin color, thus indicating better quality. The storage period for ‘Shine Muscat’ varies depending on the storage method: up to 60 days in cold storage and up to 110 days in Controlled Atmosphere (CA) storage. Like other kinds of fruits, CA storage was more effective for long-term storage. Furthermore, considering that the quality characteristics manifested during the prestorage PGR treatment were maintained during CA storage, secondary treatment with CPPU was deemed effective for optimal quality and storage.
        4,000원
        777.
        2024.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        In ecosystems within limited resources, interspecific competition is inevitable, often leading to the competitive exclusion of inferior species. This study aims to provide foundational information for the conservation and restoration management of Microphysogobio rapidus by evaluating species’ ecological response to biological factors within its habitat. To understand this relationship, we collected food web organisms from site where M. rapidus coexist with Microphysogobio yaluensis, a specie ecologically similar to M. rapidus, and evaluated the trophic levels (TL), isotopic niche space (INS), and the overlap of INS among fishes within the habitat using stable isotope analysis. Our analysis revealed that the M. rapidus exhibited a higher TL than M. yaluensis, with TL of 2.6 and 2.4, respectively. M. yaluensis exhibited a broad INS, significantly influencing the feeding characteristics of most fish. Conversely, M. rapidus showed a narrow INS and asymmetric feeding relationships with other species, in habitats with high competition levels. This feeding characteristics of M. rapidus indicate that the increase in competitors sharing the similar resources lead to a decrease in available resources and, consequently, is expected to result in a decrease in their density.
        4,300원
        778.
        2024.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        In the post-COVID-19, the food industry is rapidly reshaping its market structure toward online distribution. Rapid delivery system driven by large distribution platforms has ushered in an era of online distribution of fresh seafood that was previously limited. This study surveyed 1,000 consumers nationwide to determine their online seafood purchasing behaviors. The research methodology used factor analysis of consumer lifestyle and Heckman’s ordered probit sample-selection model. The main results of the analysis are as follows. First, quality, freshness, selling price, product reviews from other buyers, and convenience are particularly important considerations when consumers purchase seafood from online shopping. Second, online retailers and the government must prepare measures to expand seafood consumption by considering household characteristics and consumer lifestyles. Third, it was analyzed that consumers trust the quality and safety of seafood distributed online platforms. It is not possible to provide purchase incentives to consumers who consider value consumption important, so improvement measures are needed. The results of this study are expected to provide implications on consumer preferences to online platforms, seafood companies, and producers, and can be used to establish future marketing strategies.
        5,100원
        779.
        2024.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        In Korea, twenty-nine types of microbial pesticides and thirty-two types of naturally occurring materials and chemicals are exempt from MRL (maximum residue level), and fifty types of active ingredients of pesticides are exempt from establishing the acceptable daily intake (ADI) during the pesticide registration process. Out of these materials, twenty-nine types of microbial pesticides and thirty-two types of naturally occurring materials and chemicals are exempt from MRL. Twenty-seven microorganisms and fifteen chemicals are exempt from both ADI and MRL. The European Union exempts the MRL for 148 active pesticide ingredients, and CODEX suggested sixty-three substances as exempt substances from setting the MRL. In Japan, sixty-five types of pesticide components were exempted from MRL. MRL-exempted substances differed depending on the referenced agency, which is presumed to be due to differences in the types of pesticides approved and the approved usage methods in each country. In most countries, MRL exemptions for pesticides are based on toxicity and exposure assessments, and these substances are composed of substances that have a very low risk to the human body or remain in food and are not exposed to the human body and MRLs are exempted based on GAP (good agricultural practice) approved during the licensing process. By referring to the CODEX and the European Union's MRL exemption guidelines, a guideline for evaluating pesticide safety was prepared to determine it as an MRL-exempt substance when setting standards for pesticide residue in Korea. Conclusively, most regulatory agencies decide whether to exempt pesticides from MRL by considering GAP and indications for use during the registration process, and criteria for evaluating exemptions include risk factors, possibility of human exposure and management options.
        4,000원
        780.
        2024.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        목적 : 본 연구는 국민건강영양조사 제8기(2019-2021) 원시자료를 이용하여, 생체지표를 통한 휘발성 실내환 경요인(휘발성 유기 화합물, VOCs)과 백내장의 연관성을 파악하고자 하였다. 방법 : 백내장 의사진단 여부 및 가정 실내공기질 측정에 참여한 만 40세 이상의 성인 총 1,150명을 대상으로 하였다. 일반적 특성에 따른 휘발성 실내환경요인의 농도와 백내장의 유 ‧무에 따른 휘발성 실내환경요인의 농도를 비교하기 위해 복합표본 기술통계 분석과 로지스틱회귀분석을 하였다. p<0.050인 경우 유의한 것으로 판단하였다. 결과 : 대부분의 실내 휘발성 환경오염물질의 생체지표는 백내장을 진단받은 대상자에서 높게 나타났다. 특히 Benzene, Xylene, Acrolein, 1-Bromopropane, 1,3-Butadiene의 생체지표 평균농도(GM)가 백내장 진단받은 대상자들이 유의하게 높게 나타났다. 연령, 성별, 결혼, 알콜, 흡연, 소득을 보정한 복합표본 로지스틱회귀분석에 서, 1,3-Butadiene의 생체지표는 약 2배(OR 1.905(95% CI: 1.001, 3.625))의 위험도로 백내장에 영향을 미칠 수 있는 것으로 나타났다. 결론 : 본 연구는 기존에 밝혀지지 않은 휘발성 실내환경요인과 백내장의 연관성을 파악함으로써, 일부 휘발성 실내환경물질은 백내장의 원인물질로 작용할 수 있는 가능성을 보여주었다.
        4,000원