• Parasites, Hosts and Diseases
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• 제49권4호
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• pp.357-364
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• 2011

Various Leishmania species were engineered with green fluorescent protein (GFP) using episomal vectors that encoded an antibiotic resistance gene, such as aminoglycoside geneticin sulphate (G418). Most reports of GFP-Leishmania have used the flagellated extracellular promastigote, the stage of parasite detected in the midgut of the sandfly vector; fewer studies have been performed with amastigotes, the stage of parasite detected in mammals. In this study, comparisons were made regarding the efficiency for in vitro G418 selection of GFP-Leishmania amazonensis promastigotes and amastigotes and the use of in vivo G418 selection. The GFP-promastigotes retained episomal plasmid for a prolonged period and G418 treatment was necessary and efficient for in vitro selection. In contrast, GFP-amastigotes showed low retention of the episomal plasmid in the absence of G418 selection and low sensitivity to antibiotics in vitro. The use of protocols for G418 selection using infected BALB/c mice also indicated low sensitivity to antibiotics against amastigotes in cutaneous lesions.

• Asian-Australasian Journal of Animal Sciences
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• 제13권8호
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• pp.1121-1126
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• 2000

Daily variation in the serum concentrations of insulin and insulin-like growth factor-I and in the plasma concentrations of thyroxine and triiodothyronine were evaluated in ewes fed 30%, 100% and 200% of theoretical maintenance energy requirements. The single daily meal has had significant effects (p<0.05) on almost all profiles. In general, serum or plasma hormone concentrations have increased after the meal, in particular at the two higher levels of energy intake. In the group submitted to the lowest level of energy intake, the consequences of the meal on circulating levels were almost imperceptible. The effects of feeding levels on serum or plasma concentrations have widely varied among hormones, not showing any objective pattern or relationship. Because these variations may affect the interpretation of these blood indicators, knowledge of daily profiles and of the effect of feed level must be considered. In order to maximize the diagnostic value of those indicators, the most suitable times for blood collection seem to be 16 h after the meal and (or) just before the meal. The collection 16 h after the meal apparently allows the characterization of a relatively steady metabolic state, intermediate between the close effects of food intake and the final phase of the intensification of body reserves mobilization. The collection just before the meal will give a good indication of the level of activity of those mobilization mechanisms.

• 셀메드
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• 제2권1호
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• pp.3.1-3.5
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• 2012

Ocimum basilicum belongs to the family Lamiaceae and can be found in tropical Asia, Africa, Central America and South America. It is widely cultivated commercially as a condiment or for the production of essential oil. In this review, this plant is accredited with important effects on health, in addition to being a condiment. In folk medicine it is used to treat vomiting, intestinal colic and diarrhea, menstrual pains and to improve kidney function. Some studies have demonstrated that it can be used for the treatment of hyperlipidemia and also that it has antioxidant, neuroprotective, anti-inflammatory and vasodilator properties as well as hepatoprotective effects. In view of its broad range of effects, further studies should be conducted to ascertain the possible use of this plant in clinical trials, not only for prevention but also as an adjuvant in the treatment of different diseases.

• 성인간호학회지
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• 제26권1호
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• pp.89-97
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• 2014

Purpose: During hospitalization, confusion occurs in 15~20% of older adults and persists in 5~10% of them. This study was designed to investigate effects of a five-day nursing intervention program designed to reduce confusion in hospitalized older adults. Subjects were inpatients over the age of 60 years old and were admitted in a surgical care unit. Methods: Data were collected from 111 patients. Subjects divided into one of two groups, 58 patients of the control group which received the usual nursing care; and 53 patients of the intervention group which received the usual nursing care plus nursing intervention program for reducing acute confusion. The Delirium Observation Screening Scale (DOS) and the Korean Mini-Mental Screening Examination (MMSE-K) were utilized. Results: 1) Acute delirium was significantly reduced in the intervention group compared to the control group ($x^2$=4.22, p=.034) as well as the duration of the delirious state was significantly shortened (F=56.62, p<.001). Cognitive function of the intervention group was improved (F=21.14, p<.001). Conclusion: The nursing intervention program reduced the incidence and duration of acute delirium of the elderly inpatients, as well as it helps them keep better cognitive function than the control group.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2005년도 춘계학술발표대회
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• pp.553-556
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• 2005

ANSI C 언어는 UNIX 시스템에서 뿐만 아니라 DOS 환경에서 수행되는 C 컴파일러와 각종 지원 도구가 개발되어 보급됨으로써 오늘날 널리 사용되는 범용 프로그래밍 언어 중 하나이다. EVM(Embedded Virtual Machine)은 ANSI C 언어와 SUN사의 Java 언어 등을 모두 수용할 수 있는 임베디드 시스템을 위한 가상 기계이며, SIL(Standard Intermediate Language)은 EVM에서 실행되는 중간언어로 다양한 프로그래밍 언어를 수용하기 위해서 객체지향 언어와 순차적 언어를 모두 수용하기 위한 연산 코드 집합을 갖고 있다. EVM을 위한 ANSI C 컴파일러는 ANSI C 언어를 받아 들여 EVM의 중간 언어인 SIL 코드를 출력한다. ANSI C 컴파일러에서 어휘 분석과 구문 분석 과정에서 인식되는 명칭에 대해서 그 속성들을 수집하고 이용한다. 이 속성들은 명칭이 명시적으로 혹은 묵시적으로 정의되는 곳에서 심벌 테이블에 수집된다. 본 논문에서는 수집된 정보가 올바르게 되었는지 확인하기 위하여 심벌 테이블에 있는 정보를 다시 ANSI C 언어로 복원시키는 역변역기(detranslator)를 구현하였다.

• 한국통신학회논문지
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• 제37B권10호
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• pp.929-937
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• 2012

본 논문에서는 시불변 채널 계수를 가지는 다중 셀 상향링크 네트워크에서 세 가지 종류의 기회적 간섭 관리 기술을 소개한다. 첫째, 각 기지국에서 다른 기지국에게 최소한의 간섭을 발생시키는 사용자 집합을 기회적으로 선택하는 두 가지 기회적 간섭 관리 완화 기술을 제안하고, 자유도 측면에서 성능을 분석한다. 둘째, 각 기지국에서 두 개의 임계값을 기반으로 설계된 스케줄러로 사용자를 기회적으로 선택하는 분산 기회적 스케줄링을 제안하고, 용량 스케일링 측면에서 성능을 분석한다. 마지막으로, 모의실험을 통해 제안하는 기술을 검증한다.

• 음성과학
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• 제5권2호
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• pp.57-75
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• 1999

The purpose of this paper is to develop an English prosody training system using PC for Korean learners of English. The program is called Intonation Training Tool (ITT). It operates on DOS 5.0. The hardware for this program requires over IBM PC 386 with 4 MBytes main memory, SVGA (1 MByte or more) for graphic, soundblaster 16 and over 14 inch monitor size. The ITT program operates this way: the learners can listen as well as see the English teacher's stress and intonation patterns on the monitor. The learner practices the same patterns with a microphone. This program facilitates the learner's stress and intonation patterns to overlap the teacher's patterns. The learner can find his/her stress and intonation errors and correct these independently. This program is expected to be a highly efficient learning tool for Korean learners of English in their English prosody training in the English class without the aid of a native English speaker in the classroom.

• 전기화학회지
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• 제11권1호
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• pp.59-63
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• 2008

Poly (vinylchloride) (PVC) membrane electrodes based on neutral carrier, tetracycline was prepared as an active sensor for Hg(II) ion, and tested in different contents of the potassium tetrakis (4-chlorophenyl) borate (KTpClPB) as lipophilic salt. Bis (2-ethylhexyl) sebacate (DOS), bis(l-butylpentyl) adipate (BBPA), 2-nitrophenyl octyl ether (NPOE) and dibutyl phthalate (DBP) were used as diverse plasticizing solvent mediators. This electrode shows excellent potentiometric response characteristics and display good linearity with log $[Hg^{+2}]$ versus EMF response, over a range of concentrations between $10^{-7}$ and $10^{-3}M$. With 30.8mV/decade Nernstian slope, the detection limit was $6.9{\times}10^{-9}M$ and the response time was less than 20s. The proposed electrode yields very good selectivity for mercury (II) ion over many cations such as alkali, alkaline earth, transition and heavy metal ions. And it shows a very stable potential values in a wide pH range. This reliable electrode prepared was kept at least a month without considerable alteration in their response to Hg (II) ion.

• 대한원격탐사학회지
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• 제31권4호
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• pp.321-330
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• 2015

Atmospheric correction is an essential part in time-series analysis on biophysical parameters of surface features. In this study, we tried to examine possible problems in atmospheric correction of multitemporal High Spatial Resolution (HSR) images obtained from two different sensor systems. Three KOMPSAT-2 and two IKONOS-2 multispectral images were used. Three atmospheric correction methods were applied to derive surface reflectance: (1) Radiative Transfer (RT) - based absolute atmospheric correction method, (2) the Dark Object Subtraction (DOS) method, and (3) the Cosine Of the Uun zeniTh angle (COST) method. Atmospheric correction results were evaluated by comparing spectral reflectance values extracted from invariant targets and vegetation cover types. In overall, multi-temporal reflectance from five images obtained from January to December did not show consistent pattern in invariant targets and did not follow a typical profile of vegetation growth in forests and rice field. The multi-temporal reflectance values were different by sensor type and atmospheric correction methods. The inconsistent atmospheric correction results from these multi-temporal HSR images may be explained by several factors including unstable radiometric calibration coefficients for each sensor and wide range of sun and sensor geometry with the off-nadir viewing HSR images.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제7권12호
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• pp.3180-3199
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• 2013

While non-predefined object segmentation (NDOS) distinguishes an arbitrary self-assumed object from its background, predefined object segmentation (DOS) pre-specifies the target object. In this paper, a new and novel method to segment predefined objects is presented, by globally optimizing an orientation-based objective function that measures the fitness of the object boundary, in a discretized parameter space. A specific object is explicitly described by normalized discrete sets of boundary points and corresponding normal vectors with respect to its plane shape. The orientation factor provides robust distinctness for target objects. By considering the order of transformation elements, and their dependency on the derived over-segmentation outcome, the domain of translations and scales is efficiently discretized. A branch and bound algorithm is used to determine the transformation parameters of a shape model corresponding to a target object in an image. The results tested on the PASCAL dataset show a considerable achievement in solving complex backgrounds and unclear boundary images.