• KSBB Journal
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• 제27권2호
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• pp.114-120
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• 2012

To investigate the antimicrobial activity on bacteria causing a respiration disease and antioxidant effects of water extracts from 12 kinds of wild edible vegetables, we extracted the water extracts for 72 h in $7^{\circ}C$ using distilled water as solvent. The water extracts except Ixeris dentate and Allium monanthum had high concentrations of phenol compounds and flavonoids. Liguraia fischeri specially had the highest level on total phenol compounds and flavonoids with 205 ${\mu}g/mL$ and 98. 86 ${\mu}g/mL$, respectively. The each 0.05% extracts of Sedum sarmentosum and Liguraia fischeri had high effect on the DPPH radical scavenging activity among wild edible vegetables and the most extracts promoted antioxidant activity with increasing concentration of extract. The catalase activity of Erysimum aurantiacum and Aralia elata showed more than 150 units per g of fresh tissue. The effect of antimicrobial activity on water extracts showed characteristic activity. Only Staphylococcus aureus KCTC 1928 and Corynebacterium diptheriae KCTC 3075 were inhibited cell growth on the other hands, the remainder of bacteria was not inhibited cell growth. Nevertheless, the extracts of wild edible vegetables had specific concentration as MIC for antimicrobial activity respectively. In case of the extract of Aster scaber, Erysimum aurantiacum, and Allium monanthum had over 30% antimicrobial activity on the bacteria causing a respiration disease. In results, the wild edible vegetables include high concentrations of total phenol compounds and flavonoids that give a good antioxidant activity and antimicrobial activity. Therefore the wild edible vegetables are functional food for anti-aging and physiological activation.

• 한국식품조리과학회지
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• 제28권6호
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• pp.665-673
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• 2012

The purpose of this study was to propose optimal mixing proportion by adding stevia in powder form, which are low caloric and high intensity sweetener to cookies, and to determine the characteristic of product. It reduced the average sugar content of cookies to 50%, processed stevia powder, add them in 2, 4, 6, and 8% to make cookies and measured various product characteristics, including anti-oxidant activity. The antioxidant activity was highly correlated with the total phenolic composition of stevia cookies (r=0.967). Total phenolic contents and DPPH free radical scavenging activity of cookies significantly increased with increasing stevia powder. The bulk density of the dough, spread factor and the hardness, total polyphenol contents and DPPH free radical scavenging activity of cookies significantly increased with increasing stevia powder, while the pH of the dough, and L values of the cookies decreased with increasing stevia powder content (p<0.001). Additionally, the consumer acceptability scores for the 4% stevia cookie groups ranked significantly (p<0.001) higher than those of the other groups in color, taste, flavor, sweetness and overall preference. All the take together, the results of this study suggest that stevia powder is a good ingredient for increasing the consumer acceptability and the functionality of cookies.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2018년도 추계학술대회
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• pp.360-363
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• 2018

인간의 활동은 척추 옆굽음증, 골반 뒤틀림과 같은 개개인의 신체적 특징부터 기쁨, 분노, 슬픔 등의 감정들까지 다양한 요인들에 영향을 받는다. 하지만 이러한 동작의 특성은 오랜 시간에 걸쳐서 변화하며, 단기적으로 행동의 특성은 크게 변하지 않는다. 사람의 활동 데이터는 시간 흐름에 따라서 변화하는 시계열 적 특징과 각 행동별로 일정한 규칙성을 갖는다. 본 연구에서는 시계열 적 특징을 다루기 위한 순환신경망의 한 종류인 LSTM을 활동유형을 인식하는 기술에 적용하였으며, 측정시간과 LSTM 모델의 구성요소들에대한 파라미터 최적화로 활동유형의 인식률을 개선하였다.

• 한국인터넷방송통신학회논문지
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• 제16권6호
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• pp.243-253
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• 2016

기업들은 중요한 지적 자산을 보호하고, 개인정보 유출과 같은 보안 사고를 예방을 위하여, 사내 보안 활동을 강화 하고 있다. 하지만, 이로 인한 구성원들의 보안스트레스는 점점 증가하고 있으며, 내부자에 의한 보안사고도 지속적으로 발생하고 있는 현실이다. 그리고 기업 내 다양한 정보보안 상황과 활동에 따라 통제수용자가 실제 인지하는 보안 스트레스 강도에도 차이가 있을 것으로 예상된다. 따라서 본 연구에서는 다양한 분야에서 인간의 행동결정을 설명하는데 많이 이용되고 있는 합리적 행동이론, 계획된 행동이론, 일반 억제이론 등을 정보보안 분야에 접목한 기존 연구의 이론적 고찰을 통해, 기업에서 시행되고 있는 다양한 보안정책 및 보안활동으로부터 인지된 조직 구성원의 보안정책 특성요인을 탐색적 연구를 통해 분석하고, 이러한 특성요인을 독립변수로 하여, 이들 변수들과 조직 구성원이 체감하는 보안스트레스와의 인과관계를 다중 회귀분석을 통해 설명하고, 궁극적으로는 통제수용자의 인지된 보안스트레스가 통제수용자의 보안준수행동의도에 미치는 영향에 대한 인과관계를 설명하고자 금융회사 조직 구성원을 대상으로 실증분석을 하고자 한다.

• 대한임상검사과학회지
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• 제42권2호
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• pp.97-102
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• 2010

The two new female cases of Angelman syndrome (AS) were described, which diagnosed on the basis of clinical features (dysmorphic facial features, severe mental retardation with absent speech, peculiar jerky movements, ataxic gait and paroxysms of inappropriate laughter) and neurophysiological findings. Failure to detect the deletion of the long arm of chromosome 15 or the absence of epileptic seizure were not considered sufficient to exclude a diagnosis of AS. Feeding problems, developmental delay and early signs of ataxia, especially tremor on handling objects and unstable posture when seated, proved effective as the clinical markers for early diagnosis of AS. Most of the authors agreed about the existence of three main EEG patterns in AS which may appear in isolation or in various combinations in the same patient. The most frequently observed pattern in children has prolonged runs of high amplitude rhythmic 2-3 Hz activity predominantly over the frontal region with superimposed interictal epileptiform discharges. High amplitude rhythmic 4-6 Hz activity, prominent in the occipital regions, with spikes, which can be facilitated by eye closure, is often seen in children under the age of 12 years. The EEG findings are characteristic of AS when seen in the appropriate clinical context and can be helpful to identify AS patients at an early age when genetic counselling may be particularly important.

• 대한간호학회지
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• 제29권3호
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• pp.518-529
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• 1999

The purpose of this research was to develop a nursing intervention list for family caregivers. The specific steps were as follows : 1. Analyze the concept, Soobal, based on literature review and case observation. 2. Generate an initial list of defining activities for ‘Caregiver Support : Soobal’. 3. Validate the defining activities. 4. Complete the final list of defining activities. A two-round Delphi questionnaire with an adaptation of Fehring's methodology was used to establish the content validity of intervention, Caregiver Support : Soobal. The definition of ‘Caregiver Support : Soobal’ was provision of the necessary information, advocacy, and support to facilitate primary patient care by someone other than a health care professional in Korean traditional manners. Ten nurse experts participated in Round I and II of this study. They were asked to rate activities that examplified the interventions on a scale of 1 (activity is not at all characteristic) to 5 (activity is very characteristic). Round I contained 15 ‘critical’ activities and 10 ‘supporting’ activities, while round II contained 16 ‘critical’ activities and 6 ‘supporting’ activities. No activities were considered to be ‘nonsupporting’ in both round I and II. Finally, the definition and 25 defining activities were developed. Intervention, Caregiver Support : Soobal, attained an ICV score of .82. This study provides a protocol model to develop Korean nursing interventions.

• 대한물리치료과학회지
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• 제11권4호
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• pp.11-19
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• 2004

Muscle stiffness, pain discomfort in daily activities are cardinal symtoms on arthritis. To reduce these symtoms, a nonequivalent one-group pre & posttest experiment was carried out at a rural community health post area in kwangju province during eight weeks(from 25th of January to 20th of March, 2002) The subjects were sixteen old (60-80) with osteoarthritis. And to reduce the level of pain, discomfort in daily living and to increase that of life satisfaction, 25-30minutes of muscle-joint exercise followed by 25-30minutes of local heat therapy were done three times a week. The total experimental period extended at 12 weeks and the total 36 times it executed 1. The retrogression characteristic osteoarthritis elderly with local heat and a muscle joint exercise was the telegram which it receives and after receiving, the score of the paindaily activity function appeared to the lead, there was a difference which considers statistically, this constriction was supported.(Z=4.947, p<0.0001) 2. The retrogression characteristic osteoarthritis elderly with local heat and a muscle joint exercise was the telegram which it receives and after receiving, the score of daily activity function appeared lowly, there was a difference which considers statistically, this construction was supported.(Z=2.7226, p<0.0279) 3. The retrogression characteristic osteoarthritis elderly with local heat and a muscle joint exercise was the telegram which it receives and after receiving, there was not a difference where the quality of life considers statistically, this construction was rejected.(Z=-1.2087, p>0.2171)

• Asian Pacific Journal of Cancer Prevention
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• 제15권19호
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• pp.8007-8018
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• 2014

Cervical cancer is the most common gynecologic malignancy worldwide and development of new therapeutic strategies and anticancer agents is an urgent priority. Plants have remained an important source in the search for novel cytotoxic compounds and several polyphenolic flavonoids possess antitumor properties. In this review article, data about potential anticarcinogenic activity of common natural flavonoids on various human cervical cancer cell lines are compiled and analyzed showing perspectives for the use of these secondary metabolites in the treatment of cervical carcinoma as well as in the development of novel chemotherapeutic drugs. Such anticancer effects of flavonoids seem to differentially depend on the cellular type and origin of cervical carcinoma creating possibilities for specific targeting in the future. Besides the cytotoxic activity per se, several flavonoids can also contribute to the increase in efficacy of conventional therapies rendering tumor cells more sensitive to standard chemotherapeutics and irradiation. Although the current knowledge is still rather scarce and further studies are certainly needed, it is clear that natural flavonoids may have a great potential to benefit cervical cancer patients.

• 말소리와 음성과학
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• 제5권1호
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• pp.11-16
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• 2013

This paper proposes robust feature extraction for accurate voice activity detection (VAD). VAD is one of the principal modules for speech signal processing such as speech codec, speech enhancement, and speech recognition. Noisy environments contain nonstationary noises causing the accuracy of the VAD to drastically decline because the fluctuation of features in the noise intervals results in increased false alarm rates. In this paper, in order to improve the VAD performance, harmonic-weighted energy is proposed. This feature extraction method focuses on voiced speech intervals and weighted harmonic-to-noise ratios to determine the amount of the harmonicity to frame energy. For performance evaluation, the receiver operating characteristic curves and equal error rate are measured.

• 상하수도학회지
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• 제19권1호
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• pp.98-105
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• 2005

The effects of chlorination on the elimination of three estrogenic chemicals such as $17{\beta}$-estradiol (E2), nonylphenol (NP) and bis-phenol A (BPA) were investigated using yeast two-hybrid assay (YTA), estrogen receptor competition assay (ER-CA), and high-performance liquid chromatography/mass spectrometer (LC/MS). Results of YTA, ECA and the analysis of LC/MS indicated that the estrogenic activity of above mentioned three endocrine disruptors were significantly reduced as the result of chlorination. The decrease in estrogenic activity paralleled with decrease in estrogenic chemicals under the influence of free chlorine. One common characteristic of estrogenic chemicals is the presence of a phenolic ring. Considering that a phenolic ring is likely to undergo some sort of transformation in aqueous chlorination solution, the above mentioned results may be applied to the rest of the other estrogenic chemicals in natural waters.