• 보건의료산업학회지
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• 제6권3호
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• pp.171-182
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• 2012

We tried to look for parenting stress and social support of parents who look after children with mental retardation, intellectual disability, physical disability, and deafness. We also tried to know type and severity of parenting stress and inform a necessity of a resource and social support through the study. We subjected parents who have children with disability and visit 7 medical centers to treat in the 4 cities. The parents filled out the questionnaire. We analysed the scale of parenting stress and social support using Likert 5 point scale. As a result of parenting stress and social support according to general characteristics by type of disability, parenting stress was very high regardless of type of disability. However, the parents who have children with disability had lower social support. In detail, the parents who have children with mental retardation had the highest parenting stress, and the parents who have children with deafness had the lowest parenting stress. In the social support, the parents who have children with mental retardation received high social support, and the parents who have children with intellectual disability received low social support.

• 한국동물번식학회:학술대회논문집
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• 한국동물번식학회 2004년도 춘계학술발표대회
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• pp.226-226
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• 2004

Circling (cir) mouse is a spontaneous mutant in the inner ear that was first reported in Korea. The mutation is transmitted by an autosomal recessive gene with 100 %- penetrance.. Homozygous mice are characterized by head-tossing, bi-directional circling behavior and deafness. Histologicalexamination of the inner ear reveals abnormalities of the region around the organ of Corti, spiral ganglion neurons, and outer hair cells. (omitted)

• 대한기관식도과학회:학술대회논문집
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• 대한기관식도과학회 1976년도 제10차 학술대회연제 순서 및 초록
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• pp.85.3-86
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• 1976

돌발성난청은 만약청력이 구조될 가망이 있으면 즉각적인 검사와 치료가 필요하다. 이것은 이과적 비상사태이며 또 진단의 도전자이다. 감각신경성돌발성난청은 광범위한 종류의 병인으로 생길 수 있다. 종합적인 정밀검사를 곧 시행하여 치료를 지체없이 시작해야만 될 것이다. 감각신경성난청환자에 대해서 아무것도 할 것 없다는 관념은 버려야 되겠다. 돌발성난청을 일으키는 어떤 병인은 치료에 순응 않거나 또는 다만 일부만 정상회복이 가능하다. 그러나 그냥 두면 조금은 회복되거나 또는 스스로는 전연 회복되지 않고, 적절한 치료에는 반응하는 병인들도 있다. 이 병인들을 확인하여 그 처치에 대하며 전심 연구하는 것은 긴요하다. 연령 성별의 비율 및 병변의 편측 또는 양측성은 그 원인에 관련되며, 모은 환자군의 형에 의해서 다르다. 돌발성난청은 개별적으로는 드므나, 모이면 흔한데 외래신이과환자의 약 2.5%에 이르렀으며, 약 70%는 편측성이였다. virus, 세균 및 treponema 감염성은 약 30%였고, 약 16%는 cochlea의 혈관성병변에 의해서였다. 거의 22%는 원인불명(idiopathic)으로 이것은 청년층에서 주로 발생하였으며, 감각성이거나 신경성이였다. 12%는 외상성이고, 9%는 이중독성이였다. 기타가 11%였다. 이대중요요소는 병변의 부위와 청력장해의 기간인데 일찍 진단하여 치료하면 그만큼 치료반응이 좋다. 동시에 원인, 병리 및 치료에 대한 고찰을 더 하였다.

• 한방안이비인후피부과학회지
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• 제16권1호
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• pp.141-153
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• 2003

Introduction : The causes of sudden sensorineural hearing loss have not been detemined with precision until recently, but viral infections and vascular insufficiencies, such as vascular spasm, occlusion of sludging of erythrocytes were considered as major factors. The treatment has not been determined with precision until recently. It is similar to dizziness(眩暈). sudden dcafncss(暴聾) and congestion-fire deafness(痰火聾) in Oriental Medicine. It is very rare that someone has sudden hearing loss and visit Oriental Medicine Clinic right that time. But we expect if they take a Oriental treatment on thc right time. more effective for their symptom. Subjects : Following conclusions were reached by measuring results of oricntal medical treatments for 40 patients who visited the clinic between January of 2000 and December of 2002, and received treatments continuously for more than 1 months of time. Methods : Among the selected 40 patients. 30 patients belong to Group Ⅰ, which consisted of patients who had already visited a general hospital prior to visiting this clinic, achieved no recovery at all from sudden deafness despite going through more than 5 days of hospitalized treatments of steroidal medications. Group Ⅱ was consisted of 10 patients of sudden deafness who did not experience any steroidal treatments from other hospital prior to the oriental medical treatment. Results and conclusion : According to differentiation of syndrome. among 30 patients of the Group Ⅰ. 21 were categorized as excess syndrome patients and remaining 9 as deficiency syndrome paticnts. Among 10 patients of For Group Ⅱ, 5 were excess syndrome patients and remaining 5 were deficiency syndrome patients. Among Group Ⅰ, recovery ratio of excess syndrome patients was 47.7$\%$ and deficiency syndrome patients was 44.4$\%$ adding up recovery ratio of the group to be 46.1$\%$. Among Group Ⅱ, recovery ratio of excess syndrome patients was 80$\%$ and deficiency syndrome patients was 100$\%$ adding up recovery ratio of the group to be 90$\%$. Oriental medical treatments are generally more effective(90$\%$ recovery ratio) for Sudden Deafness than steroidal treatments. Oriental medical treatments are almost equally effective for both excess syndrome patients and deficiency syndrome patients. However, steroidal treatments for excess syndrom patients(45$\%$ recovery ratio) is much less effective than deficiency syndrome patients(73$\%$ recovery ratio). This indicates that steroidal treatments should be applied selectively to deficiency syndrome patients if applied at all. Even for patients with sudden deafness which hospitalized steroidal treatments did not result in any recovery at all, oriental medical treatments were able to achieve 46.1$\%$ recovery ratio.

• ETRI Journal
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• 제34권1호
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• pp.98-101
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• 2012

The directional medium access control (MAC) protocol improves the throughput of mobile ad hoc networks but has a deafness problem and requires location information for neighboring nodes. In the dual-channel directional MAC protocol [12], the use of omnidirectional packets does not require the exact location of destination node. In this letter, we propose a tone dual-channel MAC protocol with directional antennas to improve the throughput of mobile ad hoc networks. In the proposed MAC protocol, we use a directional CTS and an out-of-band directional DATA tone with a new blocking algorithm to improve the spatial reuse. We confirm the throughput performance of the proposed MAC protocol by computer simulations using the Qualnet simulator.

• International Journal of Contents
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• 제7권2호
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• pp.6-10
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• 2011

The directional MAC (DMAC) protocol improves the spatial reuse, but directional packets on the control channel cause the deafness problem. In this paper, we propose a tone dual-channel DMAC protocol for mobile ad-hoc networks. In the proposed MAC protocol, the use of omnidirectional transmissions using an omnidirectional out-of-band tone solves the deafness problem and decrease packet collisions on the control channel. The use of an omnidirectional out-of-band tone also mitigates the hidden terminal problem. We use the negative CTS (NCTS) mechanism to solve the exposed terminal problem. The throughput performance of the proposed MAC protocol is confirmed by simulations using the Qualnet simulator.

• 대한기관식도과학회:학술대회논문집
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• 대한기관식도과학회 1978년도 제12차 학술대회연제 순서 및 초록
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• pp.8.1-8
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• 1978

Waardenburg 씨 증후군은 1951년에 Waardenburg가 처음으로 기술한 이래 Partington(1959), DiGeorge(1960)등에 의해 이 증후군에 대한 보고가 있었다. 선천성 난청의 l∼7%를 차지하는 본 증후군은 선천성 난청 외에 내안각의 측면전위, 백색증, 홍채이색증, 비근부의 편평 및 미모의 과도형성 등의 증상을 특징으로 한다. 본 증후군에서 청력장애는 출생후 서서히 나타날 수도 있고 청력장애의 정도 및 양상도 Fisch(1959)등의 보고에서 보듯이 다양하게 나타날 수 있다. 저자는 이 증후군의 3례를 체험하였기에 문헌적 고찰과 아울러 보고하는 바이다.

• 한국음향학회:학술대회논문집
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• 한국음향학회 1994년도 FIFTH WESTERN PACIFIC REGIONAL ACOUSTICS CONFERENCE SEOUL KOREA
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• pp.631-637
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• 1994

For at least 14 years after the publication of minimum permissible exposure limits that would largely eradicate industrial deafness, statute legislation in Queensland remained unchanged and ineffective. Industrial deafness continued to occur. New legislation, introduced in 1989 and amended in 1993, and based on a duty of care responsibility incumbent on all, may remedy this situation. The new legislation is examined and comments are made about the values inherent in the new approach. It is concluded that public policy strategists may increase the likelihood of success of they ensure that the duty of care provisions (together with the general provisions of the Act) are backed up by innovative complementary economic, financial and marketing incentives.

• 한국동물번식학회:학술대회논문집
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• 한국동물번식학회 2001년도 춘계학술발표대회
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• pp.48-48
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• 2001

A new neurological mutant has been found in the ICR outbred strain mouse. Affected mice display profound deafness and a head-tossing and bidirectional circling behavior, showing an autosomal recessive mode of inheritance. It was, therefore, named cir/Kr with the gene symbol cir. The auditory tests identified clearly the hearing loss of the cir mice when compared to wild type mice. Pathological studies confirmed the developmental defects in the middle ear, cochlea, cochlear nerve, and semicircular canal areas, which were correlated to the abnormal behavior observed in the cir mice. Thus, cir mice may be useful as a model for studying inner ear abnormalities and deafness. We have constructed a genetic linkage map by positioning 14 microsatellite markers across the (cir) region and intraspecific backcross between cir and C57BL/6J mice. The cir mouse harbors an autosomal recessive mutation on mouse chromosome 9. The cir gene was mapped to a region between D9Mit116 and D9Mit38 Estimated distances between cir and D9Mit116, and between cir and D9Mit38 are 0.7 and 0.2 cM, respectively. The gene in order was defines : centromere-D9Mit182-D9Mit51/D9Mit79/D9Mit310-D9Mit212/D9Mit184-D9Mit116-cir-D9Mit38-D9Mit20-D9Mit243-D9Mit16-D9Mit55/D9Mit125-D9Mit281. The mouse map location of the cir locus appears to be in a region homologous to human 3q21. Our present date suggest that the nearest flanking marker D9Mit38 provides a useful anchor for the isolation of the cir gene in a yeast artificial chromosome contig.

• Journal of the Optical Society of Korea
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• 제20권2호
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• pp.269-275
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• 2016

This study has investigated the feasibility of 980-nm low-energy pulsed near-infrared laser stimulation to evoke auditory responses, as well as the effects of radiant exposure and pulse duration on auditory responses. In the experiments, a hole was drilled in the basal turn of the cochlea in guinea pigs. An optical fiber with a 980-nm pulsed infrared laser was inserted into the hole, orientating the spiral ganglion cells in the cochlea. To model deafness, the tympanic membrane was mechanically damaged. Acoustically evoked compound action potentials (ACAPs) were recorded before and after deafness, and optically evoked compound action potentials (OCAPs) were recorded after deafness. Similar spatial selectivity between optical and acoustical stimulation was found. In addition, OCAP amplitudes increased with radiant exposure, indicating a photothermal mechanism induced by optical stimulation. Furthermore, at a fixed radiant exposure, OCAP amplitudes decreased as pulse duration increased, suggesting that optical stimulation might be governed by the time duration over which the energy is delivered. Thus, the current experiments have demonstrated that a 980-nm pulsed near-infrared laser with low energy can evoke auditory neural responses similar to those evoked by acoustical stimulation. This approach could be used to develop optical cochlear implants.