• 제목/요약/키워드: NAL

검색결과 143건 처리시간 0.029초

Auditory Recognition of Digit-in-Noise under Unaided and Aided Conditions in Moderate and Severe Sensorineural Hearing Loss

  • Aghasoleimani, Mina;Jalilvand, Hamid;Mahdavi, Mohammad Ebrahim;Ahmadi, Roghayeh
    • Journal of Audiology & Otology
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    • 제25권2호
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    • pp.72-79
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    • 2021
  • Background and Objectives: The speech-in-noise test is typically performed using an audiometer. The results of the digit-in-noise recognition (DIN) test may be influenced by the flat frequency response of free-field audiometry and frequency of the hearing aid fit based on fitting rationale. This study aims to investigate the DIN test in unaided and aided conditions. Subjects and Methods: Thirty four adults with moderate and severe sensorineural hearing loss (SNHL) participated in the study. The signal-to-noise ratio (SNR) for 50% of the DIN test was obtained in the following two conditions: 1) the unaided condition, performed using an audiometer in a free field; and 2) aided condition, performed using a hearing aid with an unvented individual earmold that was fitted based on NAL-NL2. Results: There was a statistically significant elevation in the mean SNR for the severe SNHL group in both test conditions when compared with that of the moderate SNHL group. In both groups, the SNR for the aided condition was significantly lower than that of the unaided condition. Conclusions: Speech recognition in hearing-impaired patients can be realized by fitting hearing aids based on evidence-based fitting rationale rather than by measuring it using free-field audiometry measurement that is utilized in a routine clinic setup.

VR 콘텐츠가 재한 중국인 유학생 아증후군적 우울 상태에 미치는 영향 연구 - 주의력회복이론을 기반으로 - (A Study on the Effect of VR Content on Sub-Syndromatic Depression of Chinese Students in Korea - Based on Attention Restoration Theory (ART) -)

  • 정선요;이연우;김치용
    • 한국멀티미디어학회논문지
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    • 제25권1호
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    • pp.124-134
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    • 2022
  • Based on existing research, the psychological state of Chinese students has become a very significant issue that needs to be resolved. In addition to paying attention to the daily life and study of Chinese students, the psychological problems of Chinese students are also worthy of attention. At the same time, if the existing psychological problems are not resolved in time, serious consequences may result. Based on the ART(Attention Restoration Theory) theory, this article uses VR (Virtual Reality) content as a medium, uses 3D modeling software to build a healing scene that helps Chinese students improve their psychological and emotional state, and presents it in a VR device. To achieve the purpose of improving the psychological and emotional state of Chinese students. According to experimental tests, the VR recovery scene constructed by this method can help improve the psychological mood of Chinese international students who already have subliminal depression. The results of independent sample T-tests after data analysis experiments show that after the intervention of the experiment, the depression of the experimental group is significantly improved compared to the control group. It is proved that the method in this study is effective for the mentality and emotion of Chinese international students who have subliminal depression. There is a significant improvement effect.

예비수학교사 창의·인성 역량 강화를 위한 교과교육학 강의 분석 (Analysis of Lectures for Strengthening Creativity and Personality of Pre-Mathematics Teachers)

  • 신준국;김정겸;서보억
    • 한국학교수학회논문집
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    • 제20권3호
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    • pp.255-275
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    • 2017
  • 수학과 교육과정은 교수 학습에서 창의 인성을 강조한다. 2015개정 수학과 교육과정에서는 창의 융합, 태도 및 실천 역량을 통해 이를 강조하였다. 이에 본 연구에서는 예비수학교사의 창의 인성 역량을 강화하고, 이를 학교 수학수업 현장에서 실현하기 위한 기초 연구를 수행하였다. 본 연구에서는 사범대학 수학교육과 교과교육학 강좌를 창의 인성 역량 함양에 초점을 맞추어 진행하였고, 이 강의를 통해 예비수학교사의 창의 인성 역량 함양에 유의미한 변화가 있었는지 양적 분석과 더불어 수업 참여 관찰을 통해 교과교육학 강의에 대한 질적 분석을 실시하였다. 이 연구를 통해 수학 교과교육학 수업운영에 의미 있는 시사점 도출이 기대된다.

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Anti-diabetic Effects of Ethanol Extract from Bitter Melon in Mice Fed a High-fat Diet

  • Yoon, Nal Ae;Park, Juyeong;Lee, Jiyeon;Jeong, Joo Yeon;Kim, Hyun-Kyu;Lee, Hak Sung;Hwang, In Guk;Roh, Gu Seob;Kim, Hyun Joon;Cho, Gyeong Jae;Choi, Wan Sung;Lee, Dong Hoon;Kang, Sang Soo
    • 한국발생생물학회지:발생과생식
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    • 제21권3호
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    • pp.259-267
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    • 2017
  • Present study aimed to determine the effect of 'bitter melon', a popularly used fruit in Bangladesh and several other Asian countries, on high-fat-diet-induced type 2 diabetes. To investigate the effect, ethanol extract from bitter melon (BME) as a dietary supplement with mouse chow was used. BME was found to significantly attenuate the high-fat diet (HFD) -induced body weight and total fat mass. BME also effectively reduced the insulin resistance induced by the HFD. Furthermore, dietary supplementation of BME was highly effective in increasing insulin sensitivity and reducing hepatic fat and obesity. These results indicate that BME could be effective in attenuating type 2 diabetes and could therefore be a preventive measure against type 2 diabetes.

조선중기 일상복의 구조와 구성 - 16.17C 출토복식중심 - (A Study on the Daily Clothes of the Middle Years of the Chosun Dynasty - Based on the Excavated Costume -)

  • 장인우
    • 복식
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    • 제35권
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    • pp.343-366
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    • 1997
  • Most of the recently-exhumed excavat-ed costume is the garment for the dead which is one of the costume of funeral rite Investigating the birth and death years of the dead reveals that the excavated cos-tume was mostly used in the 16th and 17th centuries, . The study on the change of clothes in-cludes two aspects; one is manifestication of the structure of clothes and the other is elucidation of the constructure of clothes through examining constructure compo-nents and constructure compo-nents and construction method. This study investigates the costume of the midddle years of the Chosun dynasty in these aspects by examining the excavated Costume of 16th and 17th centries and Ryesu. This study also aims to assist to comprehend the constructure of costume by comparing actual excavated clothes with chronological standards through in-specting diverse clothes in a specified pe-riod. The construction of the clothes of the middle years of the Chosun dynasty is different depending on the purpose of theclothes and the principle of sewing is set up on the bases of mentality and body That is the Costume stands for the individual social and men-tal world of the people at that time since the external construction of the clothes represents their social rank and the inter-nal construction of sewing symbolizes their mentality. The characteristics features of the clothes of the middle years of the Chosun dy-nasty coexistence of diverse sorts and patterns indicates a change in clothes. This suggests that the clothes of a partic-ular class last and change in role corre-sponding to formation lasting and extinc-tion of the class. Thus diversityof the sort of general costume advancement of pattern and the change of clothes de-pending on the change of the class signify that the middle years of the Chosun- dy nasty is a period in which the general costume is actively developed and a turn-ing point for transforming the traditional clothes into new ones, . In other words the middle years of the Chosun dynasty is characterized as an era during which a castume native to Korea is formed with respect to the structure and constructure of clothes.

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Purification and Identification of Paenibacillus sp., Isolated from Diseased Larvae of Allomyrina dichotoma (Linnaeus, 1771) (Coleoptera: Scarabaeidae) in Insect Farms

  • Kang, Tae Hwa;Han, Sang Hoon;Weon, Hang Yeon;Lee, Young Bo;Kim, Namjung;Nam, Sung Hee;Park, Hae Chul
    • International Journal of Industrial Entomology and Biomaterials
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    • 제25권2호
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    • pp.195-203
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    • 2012
  • In reared populations of Allomyrina dichotoma, commercial insects, the skin of last instar larvae was changed softer with opaque white, and infested grubs eventually died. To clarify the cause of the symptom, we collected the larvae of A. dichotoma from five farms and examined their intestinal bacterial florae using pyrosequencing technique. From those results, a member of Paenibacillus was found only in the larvae showing the symptom of disease. Through PCR analysis using a Paenibacillus specific primer set, we obtained the partial 16S rRNA gene sequence and confirmed the microbe as Paenibacillus sp. For clear identification, a whole guts was extracted from each larva showing the sign of the disease and incubated at $70^{\circ}C$ for 15 min to isolate spore forming bacteria. After then, each content of guts was cultured on $MYPGP_{NAL}$ agar medium($12.5{\mu}g/ml$ of nalidixic acid) at $30^{\circ}C$. The 16S rRNA gene sequence analysis for the isolated bacteria showed that they were closely related to P. rigui(97.9% similarity), to P. chinjuensis(96.1% similarity), and to P. soli(95.3% similarity). Additional tests including API test and cellular fatty acid composition analysis were performed, but the strain couldn't be identified at species level, suggesting it may represent novel species of the genus Paenibacillus.

대동맥류의 수술적 치료에 관한 임상적 연구 (Clinical Study of Surgical Treatment of Aortic Aneurysm)

  • 류지윤;전홍주;조광현
    • Journal of Chest Surgery
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    • 제30권3호
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    • pp.300-307
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    • 1997
  • 인제대학교 부속 부산백병 원 흉부외과학교실에서는 지난 87년 10월부터 96년 1월까지 총25례의 흉부 및 복부 대동맥류를 수술로 치험하였다. 환자의 연령은 최소 26세에서 최고 73세(평균연령 52. 5세)였으며 남자가 13명 여자가 12명이였다. 발생 부위에 따라흉부 대동맥류가 18례 복부 대동맥류가7례였다. 원인에 따른 분류에서 16례가 박리성이 였으며 9례가 비박리성 대동맥류였다. 동맥류의 위험 인자로는 고혈압이 가장 많았으며 기타 고지질증, Marfan증후군등이였다. 흉부 대동맥류는 침범 부위에 따라 동맥류 절제술과 인조혈관 대치술 및 관상동맥 이식술등을 증례에 따라적절히 시행하였다. 복부 대동맥류는 동맥류 절제후 침범 부위에 따라 일자 또는 역Y형 인조혈관 을 대 치시켰다. 총 5례의 술후 사망이 있어서 수술 사망률은 20%였으며 생존 환자는 특별한 합병증 없이 퇴원하였다.

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OPTIMIZATION OF DIETS WITH EQUAL QUALTITY OF PROTEIN DERIVED FROM FOOD LEGUME AND CEREAL FOR HARD WORKING RURAL POOR USING PROGRAMMING APPOACH

  • Kulkarni, S.D.;Bhole, N.G.;Sawarkar, S.K.
    • 한국농업기계학회:학술대회논문집
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    • 한국농업기계학회 1993년도 Proceedings of International Conference for Agricultural Machinery and Process Engineering
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    • pp.637-647
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    • 1993
  • Over 40 per cent Indian population needs to be attended for nutritional improvement. Traditional nutritious food resources though abundantly available but presently less used, if incorporated in the diets, can yield low-cost nutritionally balanced diets. The linear programming (LP)model was used for optimization of food resources to satisfy protein -energy requirements of hard working rural poor. Soybean-a highly nutritious food legume-available at reasonably low price was included along with chick -pea and pigeon -pea for comparison .The three cereals predominantly used in Indian diets -rice, wheat and sorghum -and three typical leafy vegetables namely, spinach , drumstick leaves and rajagira (Amaranths paniculantus) leaves were used for optimization . The contribution of food legume was restricted to supply only 50 per cent of daily protein requirement for maximum protein value. The quantities of other food stuffs namely , milk , sugar , tubers etc. were restricted to nati nal per capita availability. the nutrition satisfaction levels in per cent RDA by the model are 149-250 for protein , 51-106 for fat, 134-362 for iron an d143-1158 for Vitamin-A. Quantities of food legumes, cereals and leafy vegetables ranged from 289-601, 3000-3700 and 360-1200 g/day respectively for a reference family of five hard working rural poor. Daily food resources cost ranged from US$ 0.6 to 1.0 for the family. Amongst food legumes, soybean based diet combinations provide maximum nutritional benefits at minimum cost indicating its suitability for wider adoption by hard working poor.

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한국 미기록 외래식물: 날개카나리새풀(벼과) (An Unrecorded Alien Species in Korea: Phalaris paradoxa L. (Poaceae))

  • 류태복;이승은;김덕기;최동희;김남영
    • 한국자원식물학회지
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    • 제31권1호
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    • pp.52-55
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    • 2018
  • 제주특별자치도 서귀포시 안덕면에서 국내 벼과 미기록 외래식물인 날개카나리새풀(Phalaris paradoxa L.)을 발견하였다. 이 종은 유럽 지중해 원산으로, 전 세계에 분포하고 있다. 한국에 분포하는 동속 식물인 갈풀, 카나리새풀, 애기카나리새풀, 흰줄갈풀에 비해 6개의 불임성 소수가 1개의 임성 소화를 감싸고, 포영상부에 치아상의 날개가 발달하는 특징을 가지고 있다. 국명은 이러한 특징을 바탕으로 날개카나리새풀로 신칭하였고, 이에 대한 기재, 사진 및 검색표를 제시하였다.

Hybridoma 세포의 세포성장, 항체생산 및 세포대사에 미치는 Glucose의 영향 (Glucose Effects on Cell Growth, Antibody Production, and Cell Metabolism of Hybridoma Cells)

  • 정연호
    • KSBB Journal
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    • 제10권3호
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    • pp.323-334
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    • 1995
  • Hybridoma 세포의 세포 성장 속도, monoclo nal antibody의 생산성 및 세포 대사에 미치는 glucose의 영향이 조사되었다. IgG2,를 생산하는 m mouse-mouse hybridona VIII H-8 세포가 모델로 이용되었다. Glucose 농도에 따른 바성장속도의 변화는 기질저해형식 (substrate inhibition type) 의 성장모델로 나타낼 수 있었다. 초기 glucose 농도 4g/f까지는 최대 세포밀도의 증가를 보여 주었다. Glucose는 세포사망속도에 큰 영향을 나타내었고 glucose 농도와 비사망속도 간에는 반비례의 관계가 성립됨을 보였다. Glucose 농도가 증가될수록 세포의 생존율과 monoclonal an tibody의 생산이 증가되었다. Glucose 놓도가 증가될수록 glucose의 비소비속도가 증가되 었고, 초기 glucose 농도의 증가는 lactate의 총괄 비 생산속도의 증대를 가져왔다. 암모늄 이온의 총괄비 생산속도는 초기 Glucose의 농도에 의존하 였지만 암모늄 이온의 전반적인 생성속도는 초기 glucose 농도에 거 의 무관함을 보여 주었다.

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