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      • KCI등재
      • KCI등재

        Impact of postoperative complications on clinical and economic consequences in pancreatic surgery

        Filip ?e?ka,Bohumil Jon,Eva ?ermakova,Zden?k ?ubrt,Alexander Ferko 대한외과학회 2015 Annals of Surgical Treatment and Research Vol.90 No.1

        Purpose: Patients who develop complications consume a disproportionately large share of available resources in surgery; therefore the attention of healthcare funders focuses on the economic impact of complications. The main objective of this work was to assess the clinical and economic impact of postoperative complications in pancreatic surgery, and furthermore to assess risk factors for increased costs. Methods: In all, 161 consecutive patients underwent pancreatic resection. The costs of the treatment were determined and analyzed. Results: The overall morbidity rate was 53.4%, and the in-hospital mortality rate was 3.7%. The median of costs for all patients without complication was 3,963 Euro, whereas the median of costs for patients with at least one complication was significantly increased at 10,670 Euro (P < 0.001). In multivariate analysis American Society of Anesthesiologists ≥ 3 (P = 0.006), multivisceral resection (P < 0.001) and any complication (P < 0.001) were independently associated with increased costs. Conclusion: Postoperative complications are associated with an increase in mortality, length of hospital stay, and hospital costs. The treatment costs increase with the severity of the postoperative complications. Those factors that are known to increase the treatment costs in pancreatic resection should be considered when planning patients for surgery.

      • 광대역 고이득 응용을 위한 단일요소 자기-전기 다이폴 안테나

        윤수정(Su Jeong Yun),이가현(Ka Hyeon Lee),이정남(Jung-Nam Lee),조영균(Young-Kyun Cho) 한국정보기술학회 2022 Proceedings of KIIT Conference Vol.2022 No.6

        본 논문에서는 넓은 대역폭과 높은 이득을 갖는 단일요소 자기-전기 다이폴 안테나를 제안하였다. 제안된 안테나는 두 개의 금속판 연결을 통해 전기 다이폴의 매칭 주파수를 조절하여 대역폭을 개선하고, 금속 벽과 다이폴 안테나 사이의 간격 조절을 통해 자기 다이폴의 전류 분포를 변화시킴으로써 이득을 향상시킬 수 있다. 이러한 단일요소 안테나의 성능 개선은 제안된 안테나가 배열 형태로 구성되었을 때 더욱 높은 성능 지표를 기대할 수 있게 한다. This paper presents a single element magneto-electric dipole antenna that ensures a wide-bandwidth and high-gain. The return loss characteristics of the proposed antenna is improved by adjusting the matching frequency of the electric dipole through the connection of two metal plates. The realized gain of the antenna is enhanced by altering the current distribution of the magnetic dipole, which is changed by adjusting the distance between the metal wall and the dipole antenna. With these features, a higher performance array antenna for Ka-band can be achieved.

      • KCI등재

        Dietary Supplementation of Carob and Whey Modulates Gut Morphology, Hemato-Biochemical Indices, and Antioxidant Biomarkers in Rabbits

        Kaïs Rtibi,Khouloud Marzouki,Abedrraouf Salhi,Hichem Sebai 한국식품영양과학회 2021 Journal of medicinal food Vol.24 No.10

        This study aimed to evaluate the influence of the carob powder (CP) and sweet whey powder (WhP) inclusion into weaning feed on the gut morphology, hemato-biochemical parameters, and antioxidant biomarkers. The addition of 10 g/kg (basal diet +10 g/kg of CP, of WhP) or the mixture (5 g/kg of CP and 5 g/kg of WhP) in the rabbit's standard diet was assessed. A total of 40 weaned New Zealand White rabbits (4 weeks old) was distributed according to body weight (BW) into four treatments (n = 10) and the feed additives were provided for 7 weeks. Tissue samples and blood were obtained after slaughter. Final BW, daily weight gain, feed conversion ratio, intestinal morphology, and carcass dressing were positively affected by CP–WhP treatments compared with the control diet. Also, CP–WhP treatments significantly increased total proteins, calcium and iron levels, fecal cholesterol excretion, total antioxidants capacity, superoxide dismutase, and catalase in different tissues and significantly decreased total cholesterol, triglycerides, and glucose in blood serum. These changes were associated with a diminution of blood tumor necrosis factor alpha, lipid peroxidation, and carbonyl proteins in rabbit tissues. Both the additives separately and especially in the mix may enhance productive performance, protein profile, gut function, immunity, and antioxidant activity, with reducing lipid peroxidation, essential inflammatory mediator, and protein-carbonyl residues of growing rabbits. These findings suggest that CP–WhP dietary supplementation provides novel insights into a variety of bioactive compound mixtures with different beneficial modes of actions.

      • KCI등재

        Diprosopus, craniorachischisis, arthrogryposis, and other associated anomalies in a stillborn lamb

        Cihan Kaçar,İsmet Takçı,Kutlay Gürbulak,Hasan Özen,Musa Karaman,Kadir Özcan 대한수의학회 2008 Journal of Veterinary Science Vol.9 No.4

        Congenital malformations with multiple anomalies have been described infrequently in the veterinary literature. A stillborn male crossbred lamb with diprosopus, craniorachischisis, and arthrogryposis was examined macroscopically and histopathologically in this study. The left head was smaller than the right head. Micrencephaly, agnathia, and a rudimentary tongue, which was adherent to the palate, were present in the left head. Micrencephaly, brachygnathia superior, and cleft palate were present in the right head. Cerebellar agenesis and spinal cord hypoplasia were observed. The cerebrums and the spinal cord were covered with a tapering membranous structure. Neural and dermal tissues were noted to intervene upon microscopic examination of this structure. Disorganization of neurons was observed in both cerebrums, though it was more severe in the left one. This case demonstrates many congenital defects occurring together in a lamb.

      • KCI등재

        LUBRICATING PERFORMANCE OF CARBON NANOTUBES IN INTERNAL COMBUSTION ENGINES – ENGINE TEST RESULTS FOR CNT ENRICHED OIL

        Jarosław Kałużny,Agnieszka Merkisz-Guranowska,Michael Giersig,Krzysztof Kempa 한국자동차공학회 2017 International journal of automotive technology Vol.18 No.6

        The main purpose of this research is to reduce friction losses by adding carbon nanotubes to engine oil. Extremely favorable tribological properties of carbon nanotubes have been extensively studied on the microscopic scale and using tribometers, have not yet been verified in the engine. Enriching oil with nanotubes can lead to significant, exceeding 7 %, reduction in the motoring torque of the engine at low crankshaft rotational speed. The phenomena associated with the dispersion of carbon nanotubes in the engine are stated and discussed. It has been shown that the oil shear during normal operation of the engine can effectively improve the dispersion of nanotubes. At the same time the oil filtration system removes agglomerates of nanotubes very quickly.

      • KCI등재

        Evaluation of gamma-ray and neutron attenuation properties of some polymers

        M.R. Kaçal,F. Akman,M.I. Sayyed,F. Akman 한국원자력학회 2019 Nuclear Engineering and Technology Vol.51 No.3

        In the present work, we determined the gamma-ray attenuation characteristics of eight different polymers(Polyamide (Nylon 6) (PA-6), polyacrylonitrile (PAN), polyvinylidenechloride (PVDC), polyaniline(PANI), polyethyleneterephthalate (PET), polyphenylenesulfide (PPS), polypyrrole (PPy) and polytetrafluoroethylene(PTFE)) using transmission geometry utilizing the high resolution HPGe detector anddifferent radioactive sources in the energy range 81e1333 keV. The experimental linear attenuationcoefficient values are compared with theoretical data (WinXCOM data). The linear attenuation coefficientof all polymers reduced quickly with the increase in energy, at the beginning, while decrease more slowlyin the region from 267 keV to 835 keV. The effective atomic number of PVDC and PTFE are comparativelyhigher than the Zeff of the remaining polymers, while PA-6 possesses the lowest effective atomic number. The half value layer results showed that PTFE (C2F4, highest density) is more effective to attenuate thegamma photons. Also, the theoretical results of macroscopic effective removal cross section for fastneutrons (PR) P were computed to investigate the neutron attenuation characteristics. It is found that theR values of the eight investigated polymers are close and ranged from 0.07058 cm 1 for PVDC to0.11510 cm 1 for PA-6.

      • KCI등재후보

        자폐아동의 사회성 향상을 위한 미술치료 사례 연구

        오가영 한국문화교육학회 2011 문화예술교육연구 Vol.6 No.3

        본 연구는 미술치료가 자폐아동의 사회성 향상에 어떠한 영향을 미치는지 알아보고자 하였다. 연구의 대상은 발달장애 1급 진단을 받은 자폐증 아동으로 장애 통합어린이집에 다니며, 또래 그리고 교사와의 상호작용이 어렵고 교사의 지시에 잘 따르지 못하는 아동이다. 본 연구의 대상에게 치료사와의 상호작용을 통한 미술치료 프로그램을 일주일에 한번 씩 총 12회기 실시하였다. 또한, 프로그램의 효과를 검증하기 위하여 치료사 2명과 어린이집 담임교사에게 사회성 기능 행동 평가를 사전·사후 실시하도록 하였다. 그 결과, 아동의 사회성 기능 행동 평가(사회적 책임, 자기주장, 친사회적 신체자세)에 긍정적인 변화가 나타났으며, 아동의 프로그램 활동내용을 질적 분석한 결과 아동의 사회성에 관한 행동들이 긍정적으로 변화된 모습을 살펴 볼 수 있었다. 이상의 결과를 통하여, 미술치료 프로그램이 자폐아동의 사회성 향상에 긍정적인 효과를 미친다는 결론을 내 릴 수 있다. It turns out that art therapy has an effect on the improvement of the sociality of the autistic child. The for 6 year old of autistic child who attend handicapped children inclusive child care center in J city has level 1 developmental disorder. The autistic child has problems instruction with child's peer as well as his teacher and he is not follow his teacher. The autistic child received a total of 12 art therapy sessions once a week. For the effect of this art therapy, the child’s socio affective profile test were conducted on two art therapists and the child’s teacher. The results of the study was as follows, there were great improvements in the child’s sociability(social responsibility, self-assertion, pro-sociality). Also, when the art therapy program was analyzed, it showed that art therapy had a positive influence on the child. The result proved that art therapy can provide a favorable influence to the autistic child sociality.

      • 폴리에틸렌 글리콜이 부가된 수첨 피마자유가 첨가된 에탄올 수용액의 세정효과

        이가희, 정노희 충북대학교 산업과학기술연구소 2013 산업과학기술연구 논문집 Vol.27 No.2

        Detergency is the action of imparting from an undesirable soiled substance. One of the largest applications of detergents is for cleaning of hair skin. Generally, shampoo is a hair care product used for the removal of oils and dirt substance. In this study, detergency of soiled fabrics using PEG hydrogenated castor oil used to be dry shampoo. At first, detergency of soiled fabrics with ethanol was examined. In the best physical properties of ethanol, detergency of soiled fabrics from PEG - 20, 40, 60 and 80 hydrogenated castor oil was tested with Terg - O - Tometer. The detergency was analyzed and compared through the Gravimetric and contact angle. Gravimetric method was able to measure of detergency easily and simply. Contact angle analysis was used to compare good detergency. As results, it was shown that detergency of PEG - 20 hydrogenated castor oil in 60 % ethanol was 11.5 %. In this point, contact angle difference of soiled water was 2.32 ˚. 0.4 g PEG - 20 hydrogenated castor oil in 60 % ethanol was effective for detergency, but the detergency value was limited

      • KCI등재후보

        젠더-계급 상호성을 통해 본 신빈곤층 십대여성의 젠더 역할 연구

        민가영 이화여자대학교 한국여성연구원 2007 여성학논집 Vol.24 No.2

        한국사회에서 외환위기 이후 급속도로 진행되고 있는 선자유주의 흐름은 이전의 물적/규범적 토대를 변화시키는 요인이 되고 있다. 그리고 이 과정에서 새롭게 등장하고 있는 신빈곤층 내의 젠더 역할에 대한 설명은 이 계급의 물적/문화적 조건과의 관계 속에서 설명될 필요가 있다고 보여진다. 따라서 본 연구에서는 계급적 차이를 젠더 분석에 도입하여 설명을 하기 위해 ‘젠더 보상체계’라는 개념을 사용하여 신빈곤층 범주의 젠더 역할을 탐구하였다. 신빈곤층이 기반하고 있는 신자유주의 개별 노동자 모델 그리고 개인주의화와 전망상실이 결합한 비유예문화는 이 범주의 젠더 작동을 기존의 전통적인 방식과 다르게 만드는 토대로 볼 수 있다. 이러한 물적/문화적 배경을 기반으로 한 신빈곤층 가족은 성역할에 기반 한 가족 중심주의가 가족 구성원들에게 물적/규범적 보상으로 작동하기 어려운 상황에 놓이고 있다. 남성들은 성별분업에 기반한 공적 자본의 대리인 기능을 상실해 가고 있고 여성들의 모성은 가족 이외의 다른 관계와 일자리들 사이에서 상황적, 선택적 역할로 이동되고 있다. 이러한 가족을 배경으로 한 신빈곤층 십대여성은 자본과의 관계에서 위계화 되고 있는 남성의 현실에 대한 간파와 함께 남성을 매개로 하지 않은 자본과 자신 사이의 직접적 관계를 설정해 나가기 시작한다, 또한 변화하고 있는 고용시장, 학력의 의미가 이들의 비유예/비훈육적 문화와 결합하면서 신빈곤층 십대들에게 성산업은 이전과는 다른 방식의 의미를 갖기 시작 하는데, 이는 성산업과 비성산업 사이에 뚜렷한 구분과 명확한 위계가 설정되어야 할 필요성을 흐리게 만드는 조건이 되고 있다. The stream of neo-liberalism has brought much change in the Korean society since 1990s, among which new poverty is one of the most prominent characteristics. This research aims to examine the gender roles of teenaged girls in new family poverty from the intersectional perspective of gender and class. The new poverty is anchored in an individualized labour supply model, an individualistic culture and market-consumerism. The individualized labour supply model has made big entrance of women and youth toward the labour market. In this process, a lot of women have experienced a collision between family-centrism based on gender division of the labour and other ways of life. They have deconstructed the model of femininity by taking over the role of male-breadwinner and yet constructed a direct relationship with society and capitalism. Accordingly, the new family poverty contributed to the deconstruction of family wage system at work and the division of gender roles in the home. Men cannot play the traditional role of breadwinner any longer and women are necessarily to gain jobs, from which teenaged girls are socialized according to the de-gendered roles. Due to instability of new family poverty, adolescent girls cannot receive proper care within their family. That is why they find another network of peer groups outside through internet and more than often they are linked with sexual industry. This meets with the demands of men who want to buy the body and femininity of young girls. Through such exchanges, the girls can make money without any mediation with their parents. Neo-liberalism highlights that the class status of individuals is the most important capital and individual competition is based on one's class status naturally given. The individualistic culture of neo-liberalism has made culture visionless. It is difficult for underclass people to have prospects or hope for the future in the era of neo-liberalism, Education lost its function of class mobility. In this context, the meanings of sexual industry and the exchange of body have changed. Girls in low-income families do not have motivation of discipline by a double standard norm for sexuality. The culture of 'non-delay' and 'non-discipline' of new poverty teenaged girls is remaking a system of meanings about the double norm of sexuality between men and women. In sum, the teenaged girls have showed the following attitudes to gender roles. First, they gain direct access to society without men's mediation. Second, they make a new system of meanings about the sexual dichotomy of women. Under the condition of the unstable labour market, distinctions between sexual industry and non-sexual industry have been obscure. In accordance with it, they have lost the motivation to be disciplined.

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