• Title/Summary/Keyword: Under-represented group

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Study on Vehicle Haptic-Seat for the Driving Information Transfer to Driver for the Elderly (고령운전자 운전정보전달을 위한 차량용 햅틱시트 연구)

  • Oh, S.Y.;Kim, K.T.;Yu, C.H.;Kwon, T.K.
    • Journal of rehabilitation welfare engineering & assistive technology
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    • v.8 no.3
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    • pp.151-160
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    • 2014
  • In this study, the effect of the automotive haptic-seat technology which can transmit the driving information by the vibro-stimulus from the seat was investigated to overcome previous system's limitation relied on the visual and audial method and to help handicap driving. A prototype haptic seat cover with 30 coin-type motors and driver module were developed for this sake. In an experiment of seat vibration stimulation being performed under virtual driving situation by targeting the elderly aged over 65 years old, average score of test subjects for total vibration recognition was 3.5/4 points and recognition rate of 87.5% was represented. In addition, a result that all the test subjects totally recognized overspeed warning signal of 4 times was represented. As a result of statistical analysis for vibration recognition score by each group depending on TMT score, a significant difference was not found and a result that tactile function of which vibration is recognized even by the aged whose visual, perceptional function is declined showed an equal ability was obtained.. In this study it was shown that the seat vibration stimulus could be used to transfer the old drivers' information while driving.

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INFECTIOUS STUNTING SYNDROME OF BROILER CHICKS I. CLINICAL SIGNS AND PATHOLOGICAL LESIONS

  • Khan, S.A.;Mustafa, G.;Chaudhry, R.A.;Iqbal, M.;Khan, M.I.
    • Asian-Australasian Journal of Animal Sciences
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    • v.8 no.1
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    • pp.1-6
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    • 1995
  • This study represented an endeavor to observe clinical signs and pathological lesions in broiler chicks suffering from experimental Infectious stunting syndrome(ISS). One hundred and twenty day old broiler chicks were divide randomly into two equal groups i.e. control (A) and inoculated (B). At day one of age each chick of the groups (A and B) was dosed with one ml of either tryptose phosphate broth or prepared inoculum respectively. Chicks of both the groups were housed separately under similar standard management. Inoculation induced characteristic clinical changes in birds of treatment group like of brownish diarrhea, lameness, feather developing problems and paleness of combs, wattles and shanks. By day-29 of the experiment all the stunted birds from group-B and an equal number of birds from group-A were slaughtered. These birds were examined thoroughly to record the gross changes in various structures and then the severely affected organs were processed for histopathological examination. The skeletons of affected birds were brittle, keel bones showed quite prominence while the muscles and subcutaneous tissues were almost devoid of fat. Grossly it was observed that pancreas, spleen and bursa of Fabricius were severely atrophied while the intestines were ballooned with undigested feed and gases. Histopathological examination of pancreas and spleen revealed a classical picture necessary for understanding the pathogenesis of the syndrome. The acivar cells of pancreas were atrophied and underwent vacuolation, degeneration and vecrosis. The zymogen granules were almost absent from the acinar cells. A characteristic change was an inflammatory reaction in one or more pancreatic ducts where the epithelium and fibrous tissues occluded the lumen of the ducts and led to the obstruction in pancreatic drainage.

Gemmological Characterization of Precious Serpentine from Booyo, Korea (부여산 귀사문석의 보석학적 특성 연구)

  • 김원사;우영균;이재열;김경수
    • Journal of the Mineralogical Society of Korea
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    • v.9 no.2
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    • pp.102-112
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    • 1996
  • The precious serpentine, referring to a rare and highly valuable gem variety of serpentine group minerals, is found to occur in serpentinite from Booyo Gren Jade Mine which is located in Oesan-myun, Booyo-gun of Chungchungnam-do. Geommological properties of the precious serpentine have been investigated by use of polarizing microscope, specific gravity balance, refractometer, hardness pencils, X-ray diffractometer, XRF, ICP-MS analyser, and infrared absorption spectroscope.The precious serpentine from Booyo is colored deep green with oily luster and semi-transparent. It is highly tough and Mohs's scale of hardness is measured to be 5-6. Specific gravity is determined to be 2.67, and a single refractive index ND=1.56 is observed by a spot method, using sodium light source. X-ray powder diffraction data is represented by the reflection lines at 7.40(100), 4.64(25), 3.68(68), 2.757(69), 2.530(49), 2.549(32), and 1.710(21${\AA}$), which compares very well with that of antigorite of serpentine group minerals. The major chemical compositions of the precious serpentine group minerals. The major chemical compositions of the precious serpentine are SiO2 42.49%, MgO 39.08%, Fe2O3 3.85%, and H2O 11.87%. Besides, trace elements such as Cr(2188), Ni(1110ppm), Co(58ppm), and Ta (108ppm) are relatively spectrum shows peaks at 3670, 1190, 1070, 980 and 610cm-1. Strong absorption at 3670cm-1 is due to OH stretching, and 1190, 1070 and 980cm-1 due to SiO stretching. The absorption 610cm-1 is formed by alteration of pre-existing ultramafic rock, namely peridotite, with an introduction of fluid with very little content of CO2, under 400$^{\circ}C$ environment. Magnetite inclusions, finely disseminated in the precious serpentine, may be a result of Fe precipitation, during serpentinization of olivine-bearing country rock.

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The Dilemma of Representation: Appropriation of Gender Dichotomy by Women Artists from the Middle East (재현의 딜레마: 포스트페미니즘세대 중동출신 여성작가들의 젠더 이분법 차용방식 연구)

  • Lee, Hyewon
    • The Journal of Art Theory & Practice
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    • no.15
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    • pp.111-135
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    • 2013
  • This study explores gender images represented in the works of women artists from the Middle East, where male chauvinism is recognized to be more predominant than elsewhere. The artists included in this study such as Mona Hatoum, Shirin Neshat, Lida Abdul and Sigalit Landau are Post-Feminist generation of artists who were born in the Middle East but spent significant amount of time in the West. In addition, they were trained as artists under the influences of the Western Feminist Art. This particular group of female artists pays much attention to the ontological question of their identities rather than male/female inequality, and each artist represents men and women in the ways that can hardly be found in the works by women artists in the West. These artists not only connect gender identities to the socio-political geography of the Middle East but also deconstruct Western stereotypes of men and women from Arab world. The paper focuses on the way these women artists incorporate male/female vs. culture/nature dichotomies into their works to subvert the premises on which Western Feminism has been based and not only to cast light on women's freedom and their ontological conflicts but also to emphasize social suppression inflicted upon men. In such process, these artists resist stereotypical images of Middle Eastern men and women widely circulated in the mainstream media of the West.

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The Research of Body Types of the Chinese College Women (중국여대생의 체형연구 I)

  • Sohn, Hee-Soon;Lim, Soon;Kim, Hyo-Sook;Son, Hee-Jeong;Chang, Hee-Kyung;Jung, Ryung
    • The Research Journal of the Costume Culture
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    • v.7 no.3
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    • pp.108-120
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    • 1999
  • This research analyzes characterization and classification of body types for the Chinese women with body measurement values. The measurement has gauged in 1999 in Beijing Institute of Clothing Technology in China. 100 women of the Chinese college women aged 17 and 24 in China were measured for this research. In the results of frequency analysis, the tall of Chinese women were 158.37㎝ and also has less than 150㎝ high, and has thick under bust circumference, and has a group of more than 18㎝ for width of nipple. In the results of factor analysis, Factor 1 represented the degree of abesity, while factor 2 indicated the stature and the arm length. The body types are classified into five types by cluster analysis. The stature and weight varied according to types, leading to a classification focusing on the body size determined by stature and weight factors.

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Experimental Study on Congenital Malformations of the Heart and Great Vessels in Rat Fetuses Induced by Nitrofen (임신랫트 태자에서 Nitrofen에 의해 유발된 선천성 심혈관 기형에 관한 실험연구)

  • 김원곤
    • Journal of Chest Surgery
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    • v.20 no.4
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    • pp.659-672
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    • 1987
  • Nitrofen [2,4-dichlorophenyl-P-nitrophenyl ether] is a diphenyl ether herbicide used for pre and post-emergent control of broad leafed weeds. This chemical was known to induce a variety of congenital cardiovascular anomalies with diaphragmatic hernia and hydronephrosis in the rate fetuses. The present study was conducted to produce congenital cardiovascular anomalies in the rat fetuses by oral nitrofen administration at the indicated doses and days of gestation, and to find the characteristics of nitrofen-induced cardiovascular anomalies. All the observed fetuses were removed from the pregnant Sprague-Dawley rats sacrificed on the twenty-first day of gestation. They were preserved in 10 per cent formalin and dissection for examination were carried out under a dissecting microscope using forceps and scissors. Following results and conclusion were based on dissecting microscopic findings on 482 offsprings. 1. The eleventh day of gestation was the most sensitive day for nitrofen induction of congenital cardiovascular anomalies in the rat. This incidence was dose-related in rats exposed on the eleventh day of gestation. 2. Ventricular septal defect was the most common single anomaly that represented more than half of the total cardiovascular anomalies, followed by aortic arch anomalies and tetralogy of Fallot. 3. Cardiac anomalies derived from infundibular maldevelopment such as tetralogy of Fallot and pulmonary atresia with ventricular septal defect were only observed in the eleventh gestation day treated group. 4. Aortic arch anomalies were found in high frequency and the great majority were characteristically anomalous right subclavian artery with left aortic arch. Key words; nitrofen, congenital cardiovascular anomalies.

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Molecular Phylogeny of the Subfamily Tephritinae (Diptera: Tephritidae) Based on Mitochondrial 16S rDNA Sequences

  • Han, Ho-Yeon;Ro, Kyung-Eui;McPheron, Bruce A.
    • Molecules and Cells
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    • v.22 no.1
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    • pp.78-88
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    • 2006
  • The phylogeny of the subfamily Tephritinae (Diptera: Tephritidae) was reconstructed from mitochondrial 16S ribosomal RNA gene sequences using 53 species representing 11 currently recognized tribes of the Tephritinae and 10 outgroup species. The minimum evolution and Bayesian trees suggested the following phylogenetic relationships: (1) monophyly of the Tephritinae was strongly supported; (2) a sister group relationship between the Tephritinae and Plioreocepta was supported by the Bayesian tree; (3) the tribes Tephrellini, Myopitini, and Terelliini (excluding Neaspilota) were supported as monophyletic groups; (4) the non-monophyletic nature of the tribes Dithrycini, Eutretini, Noeetini, Tephritini, Cecidocharini, and Xyphosiini; and (5) recognition of 10 putative tribal groups, most of which were supported strongly by the statistical tests of the interior branches. Our results, therefore, convincingly suggest that an extensive rearrangement of the tribal classification of the Tephritinae is necessary. Since our sampling of taxa heavily relied on the current accepted classification, some lineages identified by the present study were severely under-sampled and other possible major lineages of the Tephritinae were probably not even represented in our dataset. We believe that our results provide baseline information for a more rigorous sampling of additional taxa representing all possible major lineages of the subfamily, which is essential for a comprehensive revision of the tephritine tribal classification.

Oral prophylaxis practice and awareness of musculoskeletal diseases in dental hygiene students (일부 치위생과 재학생의 치면세마실습 자세와 근골격계 질환 인식도)

  • Moon, Hee-Jung;Shin, Myung-Suk
    • Journal of Korean Dental Hygiene Science
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    • v.1 no.2
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    • pp.41-52
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    • 2018
  • The purpose of this study was to examine the state of oral prophylaxis practice among dental hygiene students and their awareness of musculoskeletal diseases in an effort to provide some information on how to strengthen education on treatment posture to manage musculoskeletal diseases and how to raise awareness of musculoskeletal diseases. From November 2 to 13, 2016, a self-administered survey was conducted on 653 sophomores, juniors and seniors with an experience of oral prophylaxis practice. SPSS version 20.0 for Windows was employed to analyze the collected data. The findings of the study were as follows: 1. The largest group that accounted for 37.4% responded that the total number of students undergoing oral prophylaxis practice during a semester was four to six. The biggest group that represented 65.4% answered that the required practice time per student was one to fewer than three hours. 76.0% continued to be in the repeated same posture. 2. As for the posture of patients, supine position was most common for the maxillary sinus, which accounted for 82.2%. And semi-upright position was most common for the mandibular sinus, which represented 49.6%. 3. In regard to the burden of oral prophylaxis practice, 33.9% considered the required for the practice appropriate. 42.3% took the repeated long-lasting posture, and 53.5% were under physical pressure. 55.4% suffered from mental pressure and stress. 4. The most dominant musculoskeletal area that they experienced pain after oral prophylaxis practice was neck with 52.5%; waist with 48.2, shoulders/wrists/hands with 45.5, back with 10.3, buttocks with 4.1, elbows with 2.3, legs with 2.1, ankles/feet with 0.8 and knees with 0.6%. 5. Concerning the maintenance of repeated treatment postures and pain experience, the students who continued to be in the repeated same position underwent more pain than the others who didn't on the shoulders(2.92±1.05), in the waist(3.02±1.01), buttocks(1.75±0.92), elbows(1.55±0.79) and ankles/foot(2.52±1.25). The differences were statistically significant(p<.05, p<.01). 6. As to educational experience on treatment posture and musculoskeletal diseases, 88.8% received education on treatment posture; 87.9%, on what position should be taken in times of cooperation; 46.9%, on musculoskeletal diseases; 51.9%, on carpal tunnel syndrome; 42.3%, on varicose vein. The students who replied education on occupational diseases was necessary accounted for 89.6%. 7. The students who experienced treatment posture education were better aware of the causes of musculoskeletal diseases(3.23±3.00), ways for preventing the diseases(3.33±.834) and how to stretch the body(3.63±.858). The differences were statistically significant(p<.05, p<.001). 8. The students who experienced education on occupational diseases heard more about musculoskeletal diseases(3.27±.965), were better cognizant of the causes of the diseases(3.45±.847), were better aware of how to prevent them(3.55±.805) and found themselves to know how to stretch to prevent the diseases (3.73±.826). The differences were statistically significant(p<.001).

A Study on Farmer's Syndrome and Its Risk Factors of Vinyl House Worker and Farmer in a Rural Area (일부 농촌지역 비닐하우스 재배자들의 농부증 실태와 관련요인)

  • Lee, In-Bae;Lee, Yeon-Kyeong;Chang, Sung-Sil;Lee, Sok-Goo;Cho, Young-Che;Lee, Dong-Bae;Lee, Tae-Yong
    • Journal of agricultural medicine and community health
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    • v.24 no.1
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    • pp.13-33
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    • 1999
  • The aim of this study was to investigate fatigue scores, physical complaints, farmer's syndrome and to find out its risk factors among farmers. The questionnaire survey was conducted to 177 vinyl house workers and 213 farmers who lived in Chongyang gun of Chungnam province from February 24 to March 15, 1998. The obtained main results were followings; 1. The fatigue scores were not significantly different between vinyl house workers and farmers. The fatigue scores were higher in female group, lower education group, shorter sleep hours group(under 8 hours), nonsmoker, nondrinker group than otherwise groups. There was not statistically significant difference between the mean fatigue scores and age, eating habit and body mass index. Duration of farming years in vinyl house and farming area and number of farming workers in farmers family showed a slight relationship with the fatigue score. 2. Health scores were not different between vinyl house workers and farmers. The health states was poorer in female group, lower education group, shorter sleep hours group(under 8 hours), nonsmoker group, and nondrinker group than otherwise groups by health scores. Health scores were not related with age, eating habit and body mass index. 3. The proportion of farmer's syndrome was 49.1% in vinyl house workers and 52.1% in farmers. That was higher in female than in male and the higher proportion was found in the lower education group of vinyl house workers and farmers. The proportion of farmer's syndrome was higher in the group of smoker, alcohol drinkers and over or under weight in vinyl house workers, but did not differ in those of farmers. 4. By multiple logistic regression, sex and sleep hours were risk factors affecting to farmer's syndrome. Odds ration for female group was 2.53 (reference group was male) and that for over 8 sleep hours group was 0.74 (reference group was under 8 sleep hours group). 5. The chief complaints by CMI were "I am difficult to work due to aching the back and the limbs", "I feel prickle pain in the limbs", "I sometimes have a twinge in the limbs", "I am not quite well as having a pain in the limbs", "I feel weaker grasping power than before" in both of vinyl house workers and farmers. Vinyl house workers more frequently pointed out skin darkening, skin disease and hemorrhoids than farmers. 6. According to correspondence analysis, skin disease of vinyl house workers was related to vinyl house farmers and digestive and general symptom was associated with male and endocrinological and muscular symptom was associated with female in vinyl house workers. And it revealed that farmer's syndrome was highly related with female and farmers relatively. By the above results, the fatigue scores, perceive health and farmer's syndrome did not much differ in two groups, but aged female farmers should be considered as female farmers represented higher fatigue score, farmers syndrome and poorer perceive health than male farmers in addition to farmer's syndrome was increased with ageing process. Also feeble but distinguished symptoms which might be due to working environment were observed especially in vinyl house workers and that should be considered and investigated continuously.

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MPEG-U part 2 based Advanced User Interaction Interface System (MPEG-U part 2 기반 향상된 사용자 상호작용 인터페이스 시스템)

  • Han, Gukhee;Baek, A-Ram;Choi, Haechul
    • The Journal of the Korea Contents Association
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    • v.12 no.12
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    • pp.54-62
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    • 2012
  • AUI(Advanced User Interaction) interface aims to enhance interaction between various input/output devices and scene descriptions represented by video, audio, and graphic. Recently, MPEG-U part 2 standardization for the AUI interface is under development by MPEG(moving picture experts group). This paper introduces MPEG-U part 2 standard and presents MPEG-U part 2 AUI interface system. The AUI interface system consists of user interface in/output modules and MPEG-U XML generation/interpretation modules. The former and the latter are for UID data handling and XML data processing, respectively. This system MPEG-U standards-based input/output devices and to improve the interaction with the user can be used as a framework. By implementation of the proposed AUI interface system, MPEG-U usage scenario is introduced and it is verified that the AUI interface system conforms to MPEG-U standard.