• Title/Summary/Keyword: Abnormal Sense

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Electrophysiological Analysis in Diabetic Patients with Abnormal Sensation and Pain (이상감각과 통증을 호소하는 당뇨병 환자의 전기생리학적 특징 분석)

  • Yang, Jiwon;Lee, Yeong-Bae
    • Science of Emotion and Sensibility
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    • v.19 no.4
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    • pp.111-118
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    • 2016
  • Patients with type 2 diabetes mellitus can complain of abnormal sensation and pain which derived from the peripheral nerve damage. Various words used to be describe abnormal sense and pain, such as sharp, hot, dull, cold, sensitive, and itch. To diagnose diabetic peripheral neuropathy, several screening instruments (Neuropathic Pain Scale, NPS; Michigan Neuropathy Screening Instruments, MNSI) and electrophysiological study can be used. In this study, we aim to analyze and compare the clinical and electrophysiological characteristics of 11 patients with diabetes mellitus and abnormal sense/pain (Disease Group, DG) and 10 patients with diabetes mellitus and normal sense (Control Group, CG). In addition, we aim to reveal correlation between NPS subscore and electrophysiological parameters. As a result, the scores of NPS and MNSI in DG were significantly higher. In nerve conduction study, median motor nerve and peroneal nerve showed significant functional change. Also, median motor nerve, posterior tibial nerve and sural nerve showed negative correlation as NPS subscore increased. These results mean increased pain can be associated with abnormal nerve function. It needs to be further explored for larger size of subjects to get confirmative results.

Late Blink Reflex Abnormality in a Patient with Dysgeusia: A Case Report (미각 이상 환자에서의 후기 눈깜박 반사 검사 이상소견: 증례보고)

  • Park, Hong Bum;Han, A Reum;Kim, Ki Hoon;Park, Byung Kyu;Kim, Dong Hwee
    • Journal of Electrodiagnosis and Neuromuscular Diseases
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    • v.20 no.2
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    • pp.144-147
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    • 2018
  • Although dysgeusia can occur as a consequence of stroke attacks, many physicians and patients tend to overlook it. A 50-year old woman complained of a 2-week history of abnormal sense of taste on the anterior two-thirds of right tongue. Blink reflex test demonstrated prolonged ipsilateral and contralateral R2 responses with the right supraorbital nerve stimulations, which suggest the lesion on the descending pathway. Brainstem magnetic resonance imaging (MRI) demonstrated abnormal findings in the right lower dorsal pons, anterior to 4th ventricle, lateral to inferior colliculus, and at the level of the pontomedullary junction, which was compatible with solitary tract nucleus and spinal trigeminal nucleus. Brainstem infarction should be considered in patients who have abnormal sense of taste. Additionally, blink reflex test may be helpful for the detection of central origin dysgeusia.

Evolution and Maintenance of Proxy Networks for Location Transparent Mobile Agent and Formal Representation By Graph Transformation Rules

  • Kurihara, Masahito;Numazawa, Masanobu
    • Proceedings of the Korea Inteligent Information System Society Conference
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    • 2001.01a
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    • pp.151-155
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    • 2001
  • Mobile agent technology has been the subject of much attention in the last few years, mainly due to the proliferation of distributed software technologies combined with the distributed AI research field. In this paper, we present a design of communication networks of agents that cooperate with each other for forwarding messages to the specific mobile agent in order to make the overall system location transparent. In order to make the material accessible to general intelligent system researchers, we present the general ideas abstractly in terms of the graph theory. In particular, a proxy network is defined as a directed acyclic graph satisfying some structural conditions. In turns out that the definition ensures some kind of reliability of the network, in the sense that as long as at most one proxy agent is abnormal, there agent exists a communication path, from every proxy agent to the target agent, without passing through the abnormal proxy. As the basis for the implementation of this scheme, an appropriate initial proxy network is specified and the dynamic nature of the network is represented by a set of graph transformation rules. It is shown that those rules are sound, in the sense that all graphs created from the initial proxy network by zero or more applications of the rules are guaranteed to be proxy networks. Finally, we will discuss some implementation issues.

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The Effect of Proprioceptive Position Sense by Lumbar Flexors and Extensors

  • Park, Ji-Won;Ko, Yu-Min;Park, Seol
    • The Journal of Korean Physical Therapy
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    • v.24 no.6
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    • pp.414-418
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    • 2012
  • Purpose: Muscle fatigue affects proprioception, and it causes problems in spinal stability. The purpose of this study was to examine the effect on the accuracy of reproducing the lumbar angles before lumbar exercise and after fatiguing isokinetic lumbar exercise. Methods: Thirty healthy adults participated in this study. Before induction of fatigue by exercise, the proprioception was measured by Biodex. Lumbar positions were passively maintained on stimulation position ($25^{\circ}$ flexion and $25^{\circ}$ extension), and back to the starting position. Subjects actively repositioned the remembered stimulation position, and error degrees between the stimulation position and reposition were measured. Using an isokinetic device at $120^{\circ}$/sec of velocity of angle lumbar flexion/extension exercise resulted in muscle fatigue. The post-fatigue proprioceptive position sense was used in the same way as in pre-fatigue measurement. Results: Means of position sense of pre-fatigue were $2.19{\pm}1.97$ on flexion angle, and $5.04{\pm}2.84$ on extension angle. After exercise induced fatigue, means of position sense were $2.37{\pm}1.83$ on flexion angle, and $4.93{\pm}2.57$ on extension angle. Results of this study showed significant differences of lumbar proprioceptive position sense between pre- and post-fatigue. Conclusion: Lumbar proprioception sense in active repositioning in flexion and extension was affected in the presence of muscle fatigue. Therefore, it should be noted that therapeutic exercise for patients with abnormal proprioceptive sense or elderly people must be performed with care because muscle fatigue can cause secondary damage.

A Study on the Fault Diagnosis System for Combustion System of Diesel Engines Using Knowledge Based Fuzzy Inference (지식기반 퍼지 추론을 이용한 디젤기관 연소계통의 고장진단 시스템에 관한 연구)

  • 유영호;천행춘
    • Journal of Advanced Marine Engineering and Technology
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    • v.27 no.1
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    • pp.42-48
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    • 2003
  • In general many engineers can diagnose the fault condition using the abnormal ones among data monitored from a diesel engine, but they don't need the system modelling or identification for the work. They check the abnormal data and the relationship and then catch the fault condition of the engine. This paper proposes the construction of a fault diagnosis engine through malfunction data gained from the data fault detection system of neural networks for diesel generator engine, and the rule inference method to induce the rule for fuzzy inference from the malfunction data of diesel engine like a site engineer with a fuzzy system. The proposed fault diagnosis system is constructed in the sense of the Malfunction Diagnosis Engine(MDE) and Hierarchy of Malfunction Hypotheses(HMH). The system is concerned with the rule reduction method of knowledge base for related data among the various interactive data.

Fiber Optic Sensor for the Detection of Abnormal Structural Signals from Various Constructions (구조물 이상탐지용 광섬유 센서)

  • Kwon, Il-Bum;Lee, Youn-Jae;SeoMoon, Ung;Jo, Jae-Heung
    • Journal of the Earthquake Engineering Society of Korea
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    • v.10 no.6 s.52
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    • pp.133-135
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    • 2006
  • We propose and fabricate a novel fiber optic sensor for the detection of abnormal structural signals from various constructions. It's advantages are highly sensitive. small in dimension and electro-magnetic immune. Since this sensor was simply constructed with a single-mode fiber at infra-red wavelength and a laser-diode with the wavelength of 625 nm, the modes in the end of the optical fiber were not show as Gaussian distributed. So, we used the change of the mode distribution to get the sensor output by the external abnormal effect of structures. We investigated the resonance by performing the bending test of an aluminum beam attached with the fiber sensor. In the test, we could obtained a feasible signal to sense the abnormal condition of structures.

Frey Syndrome after Retromandibular Approach for Condyle Fracture Reduction (하악과두골절 수술 후 발생한 Frey Syndrome)

  • Lee, Jae-Min;Ki, Eun-Jung;Cheon, Hae-Myung;Choi, Moon-Gi
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.35 no.6
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    • pp.376-380
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    • 2013
  • Frey syndrome is a disease characterized by abnormal sweating, facial redness, and rare pain by stimulation of taste sense on the limited area dominated by the auriculotemporal nerve and great auricular nerve. Although the developmental mechanism and histopathologic cause of Frey syndrome are still being debated, the most reliable theory is based on injury of the parathympathetic nerve connected to the auriculotemporal nerve continuing to abnormal regeneration. The other theory is that the sweat glands develop an increased sensitivity after degeneration of sympathetic fibers. Therapy of Frey syndrome includes drugs, radiographic treatment, and surgical treatment; however, in most cases, treatment is not satisfactory. This is a case report on a 24-year-old male patient with Frey syndrome caused by the fracture reduction with retromandibular approach after multiple facial traumas and spontaneous healing without any special treatment.

Correlation Between the Lateral Flexion Postural Habit of the Neck and Sense of Position (경부의 외측굴곡 자세습관과 위치감각과의 관계)

  • Kim, Young-Min
    • The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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    • v.17 no.2
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    • pp.1-9
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    • 2011
  • Background: Injury or pain in the neck can affect proprioception. People who have a reduced proprioception are easily exposed to induce injury or pain. The aim of this study was to examine the reduced proprioception among people who had lateral flexion postural habit of neck in a sitting position. Methods: Twenty subjects with lateral flexion postural habit were compared with a matched control group. Relocation errors in 30 degree rotation to the right were measured three times with and without visual information randomly. Results: Relocation errors were higher in the lateral flexion postural group than the control group with (p<.01) and without (p<.005) the visual information. Visual information didn't affect the cervical relocation errors in the abnormal and control groups. Repetition is increased the relocation errors with (p<.01) and without (p<.001) visual information. Conclusions: The results support the hypothesis that subjects with lateral flexion postural habit have incorrect perception of their head position. It is necessary to realize the possibility of injury or pain found among people with lateral flexion postural habit.

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Functional Characterization of NtCDPK1 in Tobacco

  • Lee, Sang Sook;Yoon, Gyeong Mee;Rho, Eun Jung;Moon, Eunpyo;Pai, Hyun-Sook
    • Molecules and Cells
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    • v.21 no.1
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    • pp.141-146
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    • 2006
  • We previously showed that NtCDPK1, a tobacco calcium-dependent protein kinase, interacts with and phosphorylates the Rpn3 regulatory subunit of the 26S proteasome, and that both NtCDPK1 and Rpn3 are mainly expressed in rapidly proliferating tissues, including shoot and root meristem. In this study, we examined NtCDPK1 expression in roots using GUS expression in transgenic Arabidopsis plants, and investigated its function in root development by generating transgenic tobacco plants carrying a sense NtCDPK1 transgene. GUS activity was first detected in roots two days after sowing. In later stages, strong GUS expression was detected in the root meristem and elongation zone, as well as the initiation sites and branch points of lateral roots. Transgenic tobacco plants in which NtCDPK1 expression was suppressed were smaller, and their root development was abnormal, with reduced lateral root formation and less elongation. These results suggest that NtCDPK1 plays a role in a signaling pathway regulating root development in tobacco.

Firm's Market Value Trends after Information Security Management System(ISMS) Certification acquisition (정보보호 관리체계 인증 취득 후 기업가치의 변화에 관한 연구)

  • Jo, Jung-Gi;Choi, Sang-Hyun
    • Journal of the Korea Convergence Society
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    • v.7 no.6
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    • pp.237-247
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    • 2016
  • This study analyzed quantitative effects of ISMS certification. To measure the company value change the stock data was used and the methodology of event study was also applied. Event study methodology is a method of analyzing the effects of information or public announcement about certain events on the stock market through abnormal return of stock price. First, ISMS certification was acquired followed by the measurement of abnormal excess return of company. Based on the increase or decrease of abnormal excess return, the group was classified. There are 3 types of groups("Increase", "Reduce", "Maintain"). Next, the cluster analysis was performed for each group. Cluster analysis or clustering is the task of grouping a set of objects in such a way that objects in the same group (called a cluster) are more similar (in some sense or another) to each other than to those in other groups(clusters). The purpose of this study is to have a quantitative measurement of performance of ISMS certification. So, the result of this study will be promoted a company's ISMS certification acquisition. And it would further be beneficial to your company's information security activities.