• 문화기술의 융합
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• 제8권1호
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• pp.147-156
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• 2022

본 연구는 특수교육, 재활과학, 사회복지 분야를 통해 장애인 교육 및 복지의 거점 대학으로 위상 및 정체성을 확립하고 있는 대구대학교를 기반으로 장애인평생교육의 융합전공이 신설될 수 있는 근거와 방안을 다각적으로 논의하는 데 목적을 두어 실시되었다. 장애인평생교육은 장애인 학습자를 대상으로 하기 때문에 장애의 특수성을 공통적으로 반영하고 있으나, 교육과 복지의 두 가지 관점 및 성격을 구성하고 있으므로 장애인 관련 분야의 학제 간 융합연구에 따른 접근이 중요하게 요구된다. 위 차원에서 대구대학교는 현행에 구축하고 있는 학문 및 실천 기반의 각종 인프라를 통해 국내 장애인평생교육을 주도할 수 있는 적합한 기반을 갖추고 있으며, 법규 제정에서부터 현장기관의 설치 및 운영 등에 이르기까지 명확성이 구축되지 못한 장애인평생교육 지원체제의 현실적 한계를 개선해 나갈 수 있는 리더십 역시 충분히 갖추고 있다. 이에 따라, 본 연구는 문헌 고찰과 전문가 자문을 통해 대구대학교에서 학제간 융합전공 신설 차원에서 장애인평생교육을 반영할 수 있는 방안과 관련 근거를 연구 내용으로 제시하였다. 학제간 융합전공 신설 차원에서 조망된 장애인평생교육은 특수교육, 재활과학, 사회복지의 세 분야 간에 우선순위적 관점으로 적용되기보다는 세 분야가 공통적으로 접근할 수 있는 전문역량을 통하여 활성화되어야 한다는 관점으로 강조되었다. 연구 결과, 장애인평생교육 지원체제를 구축하지 못한 국내의 경우 특수교육, 재활과학, 사회복지의 학제 간 융합연구가 수월한 대구대학교의 적용 모델 및 방안을 기점으로 점차 관련 타 대학으로 보급 및 확산되어야 한다는 필요성이 시사되었다. 또한, 세 분야 간의 합의를 통하여 장애인평생교육 전문인력의 자격 개발 경로가 체계적으로 구축되어야 할 필요성 역시 시사되었다.

• The Korean Journal of Physiology and Pharmacology
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• 제21권6호
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• pp.651-656
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• 2017

Ursolic acid (UA) supplementation was previously shown to improve skeletal muscle function in resistance-trained men. This study aimed to determine, using the same experimental paradigm, whether UA also has beneficial effects on exercise-induced skeletal muscle damage markers including the levels of cortisol, B-type natriuretic peptide (BNP), myoglobin, creatine kinase (CK), creatine kinase-myocardial band (CK-MB), and lactate dehydrogenase (LDH) in resistance-trained men. Sixteen healthy participants were randomly assigned to resistance training (RT) or RT+UA groups (n=8 per group). Participants were trained according to the RT program (60~80% of 1 repetition, 6 times/week), and the UA group was additionally given UA supplementation (450 mg/day) for 8 weeks. Blood samples were obtained before and after intervention, and cortisol, BNP, myoglobin, CK, CK-MB, and LDH levels were analyzed. Subjects who underwent RT alone showed no significant change in body composition and markers of skeletal muscle damage, whereas RT+UA group showed slightly decreased body weight and body fat percentage and slightly increased lean body mass, but without statistical significance. In addition, UA supplementation significantly decreased the BNP, CK, CK-MB, and LDH levels (p<0.05). In conclusion, UA supplementation alleviates increased skeletal muscle damage markers after RT. This finding provides evidence for a potential new therapy for resistance-trained men.

• Food Science and Biotechnology
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• 제18권3호
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• pp.610-617
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• 2009

The stability of corn oil-in-water emulsions coated by milk proteins, sodium caseinate (CAS), or whey protein concentrate (WPC), was compared under the environmental stress of pH change. Emulsions were prepared at 0.1 of protein:oil because the majority of droplets were relatively small ($d_{32}=0.34$ and $0.35\;{\mu}m$, $d_{43}=0.65$ and $0.37\;{\mu}m$ for CAS- and WPC-emulsions, respectively) and there was no evidence of depletion flocculation. As the pH of the emulsions was gradually dropped from 7 to 3, there was no significant difference in the electrical charges of the emulsion droplets between the 2 types of emulsions. However, laser diffraction measurements, microscopy measurements, and creaming stability test indicated that WPC-emulsions were more stable to droplet aggregation than CAS-emulsions under the same circumstance of pH change. It implies that factors other than electrostatic repulsion should contribute to the different magnitude of response to pH change.

• 한국지구과학회지
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• 제42권5호
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• pp.556-570
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• 2021

This study presents the data analysis results of groundwater chemistry and the occurrence of fluoride in groundwater obtained from the groundwater quality monitoring network of Korea. The groundwater data were collected from the National Groundwater Information Center and censored for erratic values and charge balance (±10%). From the geochemical graphs and various ionic ratios, it was observed that the Ca-HCO₃ type was predominant in Korean groundwater. In addition, water-rock interaction was identified as a key chemical process controlling groundwater chemistry, while precipitation and evaporation were found to be less important. According to a non-parametric trend test, at p=0.05, the concentration of fluoride in groundwater did not increase significantly and only 4.3% of the total groundwater exceeded the Korean drinking water standard of 1.5 mg/L. However, student t-tests revealed that the fluoride concentrations were closely associated with the lithologies of tuff, granite porphyry, and metamorphic rocks showing distinctively high levels. This study enhances our understanding of groundwater chemical composition and major controlling factors of fluoride occurrence and distribution in Korean groundwater.

• Food Science and Biotechnology
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• 제16권6호
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• pp.999-1005
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• 2007

An oil-in-water (O/W) emulsion [20 wt% com oil, 0.5-6.0 wt% fish gelatin (FG), pH 3.0] was produced by high pressure homogenization, and the influence of pH, protein concentration, and homogenization condition on the formation of FG-stabilized emulsions was assessed by measuring particle size distribution, electrical charge, creaming stability, microstructure, and free FG concentration in the emulsions. Optical microscopy indicated that there were some large droplets ($d>10\;{\mu}m$) in all FG-emulsions, nevertheless, the amount of large droplets tended to decrease with increasing FG concentration. More than 90% of FG was present free in the continuous phase of the emulsions. To facilitate droplet disruption and prevent droplet coalescence within the homogenizer, homogenization time was adjusted in O/W emulsions stabilized by 2.0 or 4.0 wt% FG. However, the increase in the number of pass rather promoted droplet coalescence. This study has shown that the FG may have some limited use as a protein emulsifier in O/W emulsions.

• Food Science and Biotechnology
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• 제18권2호
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• pp.299-306
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• 2009

The purpose of this study was to prepare stable water-in-corn oil (W/O) emulsion droplets coated by polyglycerol polyricinoleate (PGPR). W/O emulsions (20 wt% aqueous phase, 80 wt% oil phase containing 8 wt% PGPR) were produced by high pressure homogenization (Emulsions 1), however, appreciable amount of relatively large water droplets (d>$10{\mu}m$) were found. To facilitate droplet disruption, viscosity of each phase was adjusted: (i) increased the viscosity of aqueous phase by adding 0.1 wt% xanthan (Emulsions 2); (ii) decreased the viscosity of oil phase and aqueous phase by heating them separately at $50^{\circ}C$ for 1 hr immediately before emulsification (Emulsions 3). Homogenizing at the elevated temperature clearly led to a smaller water droplet size, whereas xanthan neither improved nor adversely affected on the microstructures of the emulsions. In addition, the Emulsions 3 had good stability to droplet aggregation under shearing stress, thermal processing, and long term storage.

• 한국컴퓨터정보학회논문지
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• 제23권7호
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• pp.113-120
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• 2018

The purpose of this study is to derive implications for effective management of the public social worker by investigating the relationship between social support, job attitude and self-esteem of the public social worker. In order to accomplish this research purpose, social support of the public social worker as independent variables, job attitude as a dependent variable, and self-esteem as a parameter were analyzed and the relationship between these variables was analyzed. As a result, emotional, evaluative, material, and informational support, which constitute the social support of the public social worker, have a significant effect on job attitude, and self-esteem has a mediating effect on the relationship between these variables. Based on the results of this analysis, the importance of social support of the public social worker was suggested.

• Journal of Microbiology and Biotechnology
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• 제34권2호
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• pp.379-386
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• 2024

Basophils and mast cells are specialized effector cells in allergic reactions. Haliotis discus hannai (abalone), is valuable seafood. Abalone male viscera, which has a brownish color and has not been previously reported to show anti-allergic activities, was extracted with acetone. Six different acetone/hexane fractions (0, 10, 20, 30, 40, and 100%) were obtained using a silica column via β-hexosaminidase release inhibitory activity-guided selection in phorbol myristate acetate and a calcium ionophore, A23187 (PMACI)-induced human basophils, KU812F cells. The 40% acetone/hexane fraction (A40) exhibited the strongest inhibition of PMACI-induced-β-hexosaminidase release. This fraction dose-dependently inhibited reactive oxygen species (ROS) production and calcium mobilization without cytotoxicity. Western blot analysis revealed that A40 down-regulated PMACI-induced MAPK (ERK 1/2, p-38, and JNK) phosphorylation, and the NF-κB translocation from the cytosol to membrane. Moreover, A40 inhibited PMACI-induced interleukin (IL)-1β, IL-6, and IL-8 production. Anti-allergic activities of A40 were confirmed based on inhibitory effects on IL-4 and tumor necrosis factor alpha (TNF-α) production in compound (com) 48/80-induced rat basophilic leukemia (RBL)-2H3 cells. A40 inhibited β-hexosaminidase release and cytokine production such as IL-4 and TNF-α produced by com 48/80-stimulated RBL-2H3 cells. Furthermore, it's fraction attenuated the IgE/DNP-induced passive cutaneous anaphylaxis (PCA) reaction in the ears of BALB/c mice. Our results suggest that abalone contains the active fraction, A40 is a potent therapeutic and functional material to treat allergic diseases.

• Animal Bioscience
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• 제37권4_spc호
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• pp.775-785
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• 2024

Pork production is a significant agricultural enterprise in the United States and Canada. The United States is the third-largest global producer of pork and Canada ranks seventh in pork production. The North American Free Trade Agreement and its successor, the U.S.-Mexico-Canada Agreement, have facilitated trade and integration between the two countries. The majority of production systems are modern and intensive, characterized by large vertically integrated farms using advanced technologies. Both nations benefit from their status as major producers of feed grains, with the United States leading in corn and soybeans, while Canada excels in canola and barley production. The regulatory frameworks for food safety, animal welfare, and environmental stewardship differ slightly, with the FDA and USDA overseeing these aspects in the United States, and Health Canada and the Canada Food Inspection Agency in Canada. The United States and Canada also have well-established distribution networks for pork products, relying on both domestic and international markets. Export markets play a crucial role, with the United States being a major importer of Canadian pigs, and both countries exploring opportunities in Asia. Despite a rise in global demand, domestic pork consumption trends differ, with per capita consumption remaining stable in the USA and declining in Canada. Changing consumer preferences, including a demand for ethically raised and locally sourced pork, may influence production practices. Future trends in pig production include a focus on consumer concerns, sustainability, disease prevention, reduction of antimicrobial use, and advancements in technology. The industry is adapting to challenges such as disease outbreaks and changing regulations, with a strong emphasis on animal welfare. Labor and workforce considerations, along with advancements in technology and automation, are expected to shape the efficiency of pork production in the future.

• 한국과학교육학회지
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• 제37권4호
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• pp.637-650
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• 2017

시민성이 성숙 단계에 이르는 대학생들은 과학기술과 관련된 사회적 쟁점에서 시민 참여의 중요성을 인식하고, 시민의 권리와 책임을 의미 있게 활용할 수 있는 능력을 갖추고 있을 필요가 있다. 따라서 이 연구에서는 과학기술 시민 참여에 대한 대학생들의 인식과 실천역량에 대한 실태를 파악하기 위해 경기도에 위치한 D 대학교에 재학중인 예 체능 계열(33명), 인문 사회 계열(62명), 이공계열(67명)의 대학생들을 대상으로, 시민 참여 중심의 과학기술과 사회의 상호작용, 책임 있는 의사결정능력, 과학기술쟁점 효능감에 대한 인식을 조사하였다. 연구 결과, 과학기술과 사회의 상호작용에 대한 대학생들의 전반적인 인식 수준은 예 체능 계열, 인문 사회 계열, 이공계열의 순서로 높게 나타났지만, 그 점수가 모두 평균에 미치지 못하였다. 따라서 현재 대학생들은 전공 계열에 상관없이 과학기술과 사회의 관계에 대한 깊이 있는 이해가 부족한 상태임을 알 수 있었다. 그리고 과학기술과 사회 간의 관계에서 시민 참여에 대한 대학생들의 인식도 전공 계열에 상관없이 전체적으로 문제가 있는 것으로 나타났다. 책임 있는 의사결정능력에서 대학생들은 개인의 신념과 공동체의 복지를 고려하여 최선의 대안을 선택하고, 실천 전략을 수립하는데 어려움을 겪고 있는 것으로 나타났다. 또한 과학기술쟁점 효능감에서 과학기술관련 지식과 기능 및 행위 능력에 대한 대학생들의 자신감도 전공계열에 상관없이 매우 낮은 것으로 나타났다. 이에 대한 교육적 함의를 논의하였다.