• Title/Summary/Keyword: Physical detection methods

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Studies on the Safety of Artemisiae Capillaris Herba - With the Perinatal and Lactational Reproductive Toxicity - (인진의 안정성에 대한 연구 - 주산$\cdot$수유기 생식 독성을 중심으로 -)

  • Wang Wu-Hao;Park Jae-Hyun
    • The Journal of Korean Medicine
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    • v.26 no.2 s.62
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    • pp.32-51
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    • 2005
  • Objectives: To study the effect of Artemisiae Capillaris Herba extracts, that have been used as oriental medicine to treat liver disease, on the perinatal and lactational n;)productive toxicity of SD rats when administered by oral lavage. Methods: Female SD rats were dosed from 6 days of gestation to 3 weeks postpartum. This was conducted in accordance with the recommendations of the KFDA Guidelines for Detection of Toxicity to Reproduction for Medicinal Products. Results: No Artemisiae Capillaris Herba extracts treatment-related changes in clinical signs, mortalities, implantation number, dead fetus number, loss rate of fetus, number of live young, survival rate of fetus, sex ratio of live young, external anomalies, pregnancy periods, viability index, lactational index, survival rate of litters at 4 days after birth or delivery index were demonstrated in any dosed levels in this study. However, the body weight and gains, food consumption and absolute organ weights of brain, adrenal glands, liver, spleen, kidney, ovaries and heart were significantly increased in 2000 or 1000mg/kg-dosing groups and the relative organ Weights of adrenal glands were significantly increased in 2,000mg/kg-dosing groups. Therefore, it was concluded that this increase was natural according to growth. Also, no changes of gross findings, clinical signs, mortalities, body weight and gains, physical development results, necropsy findings, organ weight, faculty test, open filed test and water-filled simple T-maze test, copulation, fertility, pregnancy indices, body weight and gains during gestation periods, necropsy findings, corpora lutea number, implantation number, implantation rate, dead fetus number, post-implantation loss rate, live young, post-implantation survival rate, sex ratio of live young, external anomalies and individual body weights of live young were demonstrated in any dosed levels in this study. Conclusions: It is considered that the NOAEL (No-Observed-Adverse-Effect Level) for perinatal and lactational reproductive toxicity of Artemisiae Capillaris Herba extracts was up to 2000mg/kg/day because no changes of other perinatal and lactational reproductive indices were demonstrated.

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Estimation of User Activity States for Context-Aware Computing in Mobile Devices (모바일 디바이스에서 상황인식 컴퓨팅을 위한 사용자 활동 상태 추정)

  • Baek Jonghun;Yun Byoung-Ju
    • Journal of the Institute of Electronics Engineers of Korea SP
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    • v.43 no.1 s.307
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    • pp.67-74
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    • 2006
  • Contort-aware computing technology is one of the key technology of ubiquitous computing in the mobile device environment. Context recognition computing enables computer applications that automatically respond to user's everyday activity to be realized. In this paper, We use accelerometer could sense activity states of the object and apply to mobile devices. This method for estimating human motion states utilizes various statistics of accelerometer data, such as mean, standard variation, and skewness, as features for classification, and is expected to be more effective than other existing methods that rely on only a few simple statistics. Classification algorithm uses simple decision tree instead of existing neural network by considering mobile devices with limited resources. A series of experiments for testing the effectiveness of the our context detection system for mobile applications and ubiquitous computing has been performed, and its result is presented.

Wooden Foreign Body in the Parotid Gland (이하선 목재 이물)

  • Moon, Yoo Jin;Choi, Hwan Jun;Kim, Mi Sun;Choi, Chang Yong;Park, Jin Gue;Kim, Jun Hyuk
    • Archives of Plastic Surgery
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    • v.35 no.2
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    • pp.201-204
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    • 2008
  • Purpose: Now the CT scanner and PACS program proved to be an excellent instrument for detection and localization of most facial foreign bodies above certain minimum levels of detectability. The severity of injury in penetrating trauma on the face is often underestimated in physical examination. Wood, with its porous consistency and organic nature, provides a good medium for microbial agents. This is a report of our recent experience with wooden foreign bodies in the parotid gland imaged with CT. Methods: A 9-year-old boy was referred for evaluation of possible retained foreign body within his face. One day earlier, he had fallen, face down approximately 1 miter onto ground. He had subsequently undergone an exploration of his right parotido-masseteric area at an outside hospital with repair of a right facial laceration. Enhanced 2 mm axial and coronal CT scans were obtained through the face. Axial and coronal CT images were obtained with a General Electric(Milwaukee, Wis) 9800 CT scanner at 130 kV, 90 mA, with a 2 mm section thickness. Results: We finally decided the linear "gas" attenuation was a foreign body because of its linear configuration, which did not conform to that of an anatomic structure, and on the basis of articles that described a wood foreign body in the orbit as having the appearance of air. We found that wood was hypoattenuating($-464{\pm}27HU$). Conclusion: We recommend this type of software program for CT scanning for any patient with an injury on the face in which a foreign body is suspected.

Incidence of Venous Thromboembolism in Pelvic and Acetabular Fractures in the Korean Population (한국인의 골반과 비구 골절에서 정맥 혈전색전증의 발병률)

  • Lee, Sang Ki;Lee, Jae Won;Hwang, Jung Joo
    • Journal of Trauma and Injury
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    • v.26 no.3
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    • pp.74-80
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    • 2013
  • Purpose: There are no detailed reports on the incidence of venous thromboembolism (VTE) in pelvic and acetabular fractures in the Asian population. The purpose of this study was to investigate the incidence of VTE in pelvic and acetabular fractures in the Korean population. Methods: The cases of 67 Korean patients with pelvic and acetabular fractures treated at our hospital from January 2009 to February 2012 were analyzed retrospectively. Until May 2010, VTE screening was performed by contrast-enhanced computed tomography (CT) or ultrasonography (US) when the D-dimer value did not decline predictably, still exceeded $20{\mu}g/ml$ at 5 days after trauma and surgery, or increased to greater than $20{\mu}g/ml$ after a period of decline. After May 2010, contrast-enhanced CT and US were performed routinely irrespective of the D-dimer value. Physical prophylaxis was performed on all patients. The effects of the presence of a pelvic and/or acetabular fracture, and the effects of fracture type, accompanying injuries, and screening strategies on the incidences of VTE were investigated. Results: Overall, 26 patients(38.8%) were diagnosed with VTE and PTE in 14(20.9%). All were asymptomatic. Significantly higher incidences of VTE and PTE were observed in trauma patients with pelvic and acetabular fractures than in trauma patients without pelvic and acetabula fractures treated during the same period. No significant differences were observed in the incidences of VTE and PTE between patients with pelvic fractures, and patients with acetabular fractures or between patients with and without accompanying injuries. Compared with the previous screening strategy, the detection rates for VTE and PTE were higher for the newer screening strategy; however, the difference did not reach statistical significance. Conclusion: In the Korean population, we should be vigilant for a high incidence of VTE, especially PTE, in patients with pelvic and acetabular fractures.

1.64 ${\mu}m$ features of Jets and Outflows from Young Stellar Objects in the Carina Nebula

  • Shinn, Jong-Ho;Pyo, Tae-Soo;Lee, Jae-Joon;Lee, Ho-Gyu;Kim, Hyun-Jeong;Koo, Bon-Chul;Sung, Hwankyung;Chun, Moo-Young;Lyo, A. Ran;Moon, Dae-Sik;Kyeong, Jaemann;Park, Byeong-Gon;Hur, Hyeonoh;Lee, Yong-Hyun
    • The Bulletin of The Korean Astronomical Society
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    • v.39 no.1
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    • pp.56.2-56.2
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    • 2014
  • We present [Fe II] 1.64 ${\mu}m$ imaging observations for jets and outflows from young stellar objects over the northern part (${\sim}24^{\prime}{\times}45^{\prime}$) of the Carina Nebula, a massive star forming region. The observations were performed with IRIS2 of Anglo-Australian Telescope and the seeing was ~1.5". Eleven jets and outflows features are detected at eight different regions, and are termed as Ionized Fe Objects (IFOs). The [Fe II] features have knotty or elongated shapes, and the detection rate of IFOs against previously identified YSOs is 1.4%. Four IFOs show anti-correlated peak intensities in [Fe II] and $H{\alpha}$, where the ratio I([Fe II])/I($H{\alpha}$) is higher for longish IFOs than for knotty IFOs. We estimate the outflow mass loss rate from the [Fe II] flux using two different methods. The jet-driving objects are identified for three IFOs (IFO-2, -4, and -7). The ratios of the outflow mass loss rate over the disk accretion rate for IFO-4 and -7 are consistent with the previously reported values ($10^{-2}-10^{+1}$), while the ratio is higher for IFO-2. This excess may result from underestimating the disk accretion rate. Other YSO physical parameters show reasonable relations or trends.

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Factors Influencing the Health Examination in Unmarried Women (고연령 미혼여성의 건강검진에 영향을 미치는 요인)

  • Ha, Ju Young;Youn, Ji Hyang;Lee, Yeong Suk;Lee, Hyun Jung
    • Women's Health Nursing
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    • v.20 no.1
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    • pp.92-104
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    • 2014
  • Purpose: This study was to investigate factors that influence health examination for unmarried women. Methods: A correlation study was carried out with 144 unmarried women with an age range of 35~49 years through selfadministered questionnaires. This questionnaire included Health Belief Model modifying factors (demographic.sociological, structural, and cues to action variables). Data were analyzed using descriptive statistics, $x^2$-test, multiple logistic regression. Results: The mean age of participants was $37.2{\pm}2.67$ years. Rates for breast cancer, cervical cancer and comprehensive health examination were each 34.7%, 38.2% and 94%. In multiple logistic regression analysis, influencing factors on physical examination were age(OR=0.06, 95% CI: 0.02~0.26), personal medical insurance (OR=6.30, 95% CI: 1.60~24.82), housemate (OR=7.63, 95% CI: 2.58~22.52), exercise (OR=3.72, 95% CI: 1.37~10.12) in breast cancer examination, and age (OR=0.08, 95% CI: 0.02~0.34; OR=0.07, 95% CI: 0.01~0.85), personal medical insurance (OR=14.17, 95% CI: 2.94~68.23), sexual experiences (OR=3.38, 95% CI: 1.28~8.91), drinking (OR=2.92, 95% CI: 1.14~7.49) in cervical cancer examination. Conclusion: The results emphasize the necessity of preparing nursing education and intervention in consideration of associated factors which influence on the health examination in unmarried women.

Using multiple sequence alignment to extract daily activity routines of the elderly living alone

  • Lee, Bogyeong;Lee, Hyun-Soo;Park, Moonseo;Ahn, Changbum Ryan;Choi, Nakjung;Kim, Toseung
    • Advances in Computational Design
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    • v.4 no.2
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    • pp.73-90
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    • 2019
  • The growth in the number of single-member households is a critical issue worldwide, especially among the elderly. For those living alone, who may be unaware of their health status or routines that could improve their health, a continuous healthcare monitoring system could provide valuable feedback. Assessing the performance adequacy of activities of daily living (ADL) can serve as a measure of an individual's health status; previous research has focused on determining a person's daily activities and extracting the most frequently performed behavioral patterns using camera recordings or wearable sensing techniques. However, existing methods used to extract common patterns of an occupant's activities in the home fail to address the spatio-temporal dimensions of human activities simultaneously. Though multiple sequence alignment (MSA) offers some advantages - such as inherent containment of the spatio-temporal data in sequence format, and rapid identification of hidden patterns - MSA has rarely been used to extract in-home ADL routines. This research proposes a method to extract a household occupant's ADL routines from a cumulative spatio-temporal data log of occupancy collected using a non-intrusive method (i.e., a tomographic motion detection system). The findings from an occupant's 28-day spatio-temporal activity log demonstrate the capacity of the proposed approach to identify routine patterns of an occupant's daily activities and to reveal the order, duration, and frequency of routine activities. Routine ADL patterns identified from the proposed approach are expected to provide a basis for detecting/evaluating abrupt or gradual changes of an occupant's ADL patterns that result from a physical or mental disorder, and can offer valuable information for home automation applications by enabling the prediction of ADL patterns.

Comparative evaluation of ultrasonography with clinical respiratory score in diagnosis and prognosis of respiratory diseases in weaned dairy buffalo and cattle calves

  • Hussein, Hussein Awad;Binici, Cagri;Staufenbiel, Rudolf
    • Journal of Animal Science and Technology
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    • v.60 no.12
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    • pp.29.1-29.11
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    • 2018
  • Background: Respiratory troubles have economic impacts in countries where livestock industry is an important segment of the agricultural sector, as well as these problems may cause significant economic losses for bovine producers. Various practical methods are used to assess diseases that affect the bovine respiratory system. Ultrasonography is a noninvasive tool that has been used frequently in diagnosis of various animal diseases. The present study was designed to establish whether thoracic ultrasonography is a diagnostic tool for detection of respiratory troubles in weaned buffalo and cattle calves, as well as to assess its prognostic value in comparison with clinical respiratory scores. Thirty five (15 buffalo and 20 cattle) calves were included. Twelve (6 buffalo and 6 cattle) clinically healthy calves were enrolled as controls. Results: Based on physical examinations, clinical respiratory scores (CRS), ultrasound lung scores (ULS) and postmortem findings, animals were classified into 4 groups as pulmonary emphysema (n = 8), interstitial pulmonary syndrome (n = 7), bronchopneumonia (n = 12), and pleurisy (n = 8). The mean values of CRS and ULS were significantly higher in diseased calves (P < 0.01). In calves with pulmonary emphysema and interstitial syndrome, thoracic ultrasonography revealed numerous comet-tail artifacts, which varied in numbers and imaging features. Furthermore, variable degrees of pulmonary consolidation with alveolograms and bronchograms were noticed in bronchopneumonic calves. In addition, thick irregular or fragmented pleura with pleural effusions and fibrin shreds were imaged in calves with pleurisy. A weak correlation was calculated between CRS and ULS (r = 0.55, P < 0.01). Hematologically, the counts of white blood cells, activities of aspartate aminotransferase and partial tensions of carbon dioxide were significantly increased in all diseased groups. Serum concentrations of total globulins were higher in claves with bronchopneumonia (P < 0.05). The partial tension of oxygen was decreased in all diseased calves (P < 0.05). Conclusions: Thoracic ultrasonography is a diagnostic tool for various lung troubles and assessment the grade and severity of pulmonary diseases, as well as it can be used as a follow-up tool for evaluating the prognosis of respiratory troubles and monitoring the efficacy of therapies.

CAB: Classifying Arrhythmias based on Imbalanced Sensor Data

  • Wang, Yilin;Sun, Le;Subramani, Sudha
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.15 no.7
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    • pp.2304-2320
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    • 2021
  • Intelligently detecting anomalies in health sensor data streams (e.g., Electrocardiogram, ECG) can improve the development of E-health industry. The physiological signals of patients are collected through sensors. Timely diagnosis and treatment save medical resources, promote physical health, and reduce complications. However, it is difficult to automatically classify the ECG data, as the features of ECGs are difficult to extract. And the volume of labeled ECG data is limited, which affects the classification performance. In this paper, we propose a Generative Adversarial Network (GAN)-based deep learning framework (called CAB) for heart arrhythmia classification. CAB focuses on improving the detection accuracy based on a small number of labeled samples. It is trained based on the class-imbalance ECG data. Augmenting ECG data by a GAN model eliminates the impact of data scarcity. After data augmentation, CAB classifies the ECG data by using a Bidirectional Long Short Term Memory Recurrent Neural Network (Bi-LSTM). Experiment results show a better performance of CAB compared with state-of-the-art methods. The overall classification accuracy of CAB is 99.71%. The F1-scores of classifying Normal beats (N), Supraventricular ectopic beats (S), Ventricular ectopic beats (V), Fusion beats (F) and Unclassifiable beats (Q) heartbeats are 99.86%, 97.66%, 99.05%, 98.57% and 99.88%, respectively. Unclassifiable beats (Q) heartbeats are 99.86%, 97.66%, 99.05%, 98.57% and 99.88%, respectively.

An Efficient Method for Analyzing Network Security Situation Using Visualization (시각화 기반의 효율적인 네트워크 보안 상황 분석 방법)

  • Jeong, Chi-Yoon;Sohn, Seon-Gyoung;Chang, Beom-Hwan;Na, Jung-Chan
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.19 no.3
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    • pp.107-117
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    • 2009
  • Network administrator recognizes the abnormal phenomenon in the managed network by using the alert messages generated in the security devices including the intrusion detection system, intrusion prevention system, firewall, and etc. And then the series of task, which searches for the traffic related to the alert message and analyzes the traffic data, are required to determine where the abnormal phenomenon is the real network security threat or not. There are many alert messages to have to inspect in order to determine the network security situation. Also the much times are needed so that the network administrator can analyze the security condition using existing methods. Therefore, in this paper, we proposed an efficient method for analyzing network security situation using visualization. The proposed method monitors anomalies occurred in the entire IP address's space and displays the detail information of a security event. In addition, it represents the physical locations of the attackers or victims by linking GIS information and IP address. Therefore, it is helpful for network administrator to rapidly analyze the security status of managed network.