• Communications of the Korean Mathematical Society
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• v.30 no.4
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• pp.429-438
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• 2015

In this paper, we discuss how the operational calculus can be exploited to the theory of mixed generating functions. We use operational methods associated with multi-variable Hermite polynomials, Laguerre polynomials and Bessels functions to drive identities useful in electromagnetism, fluid mechanics etc. Certain special cases giving bilateral generating relations related to these special functions are also discussed.

• Journal of Korean Neurosurgical Society
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• v.39 no.3
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• pp.238-240
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• 2006

The incidence of distal anterior cerebral artery[ACA] aneurysm is relatively rare, and only a few cases of bilateral symmetrical distal ACA aneurysms which were adhered together have been reported. They are also called kissing aneurysms. We treated bilateral asymmetrical distal ACA kissing aneurysms in a 44-year-old woman. We successfully clipped the double aneurysmal sacs individually by interhemispheric approach in spite of intraoperative aneurysmal rupture. The patient was discharged without any neurological deficits two weeks after the operation.

• Journal of Trauma and Injury
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• v.28 no.2
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• pp.75-78
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• 2015

Mandible dislocation during endotracheal intubation is an unusual occurrence but easy to be overlooked for its unfamiliarity. We recently had a case of iatrogenic bilateral dislocation of a temporomandibular joint during orotracheal intubation and emphasize the importance of an early awareness of this possible complication.

• 대한치과보철학회:학술대회논문집
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• 1999.04a
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• pp.71-71
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• 1999

• Kyungpook Mathematical Journal
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• v.10 no.2
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• pp.121-131
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• 1970

• Tuberculosis and Respiratory Diseases
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• v.44 no.1
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• pp.203-208
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• 1997

Non-Hodgkin's lymphoma arising in lung comprises 0.5% of primary lung tumor and 3% of extranodal lymphoma. The most common radiographic abnormalities of pulmonary lymphoma include pulmonary nodule and consolidation, but hilar lymphadenopathy is rarely observed Recently we experienced primary pulmonary T-cell lymphoma presenting with bilateral hilar lymphadenopathies and diffuse pulmonary infiltration A 39-year-old man was admitted to the hospital because of fever, cough, and severe dyspnea. Chest PA obtained on admission revealed bilateral hilar lymphadenopathies and diffuse bilateral pulmonary infiltration. The diagnosis of sarcoidosis was strongly suggested and empirical treatment with corticosteroids resulted in dramatic clinical and radiological improvement for a short time. Eventually, CT-guided lung biopsy was performed and the specimen disclosed primary pulmonary Non-Hodgkin's lymphoma of T-cell origin, diffuse small lymphocytic with focal plasmacytoid differentiation.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.27 no.4
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• pp.334-345
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• 2005

The purpose of this study was to compare the postoperative stability and relapse according to 2 different fixation methods after bilateral sagittal split ramus osteotomies in mandibular prognathic patients. Tweenty one patients with Class III dental and skeletal malocclusion who were treated with bilateral sagittal split ramus osteotomy were selected for this retrospective study. We classfied the patients into two groups according to the fixation methods of bony segments after osteotomies. Group W (n = 10) had the bone segments fixed with nonrigid wire and Group S (n = 11) had bicortical screws inserted in the gonial area through a transcutaneous approach. Cephalometric radiographs were taken preoperatively, immediate postoperatively and more than six months postoperatively in each patient. After tracing the cephalometric radiographs, various parameters were measured. Before surgery, both groups were balanced with respect to linear and angular measurements of craniofacial morphology. Mean posterior sagittal setback amounts of the mandibular symphysis was 8.6 mm in the wire group and 6.79 mm in the rigid group, Six months postoperatively, the wire group had 33.1% relapse of the mandibular symphysis and 22.8% in the rigid group relapse. Both groups experienced changes in the orientation and configuration of the mandible. It is thought that Rigid screw fixation is a more stable method than nonrigid wire fixation for maintaining mandibular setback after sagittal split ramus osteotomy.

• Therapeutic Science for Rehabilitation
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• v.2 no.2
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• pp.61-66
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• 2013

Objective : The purpose of this study was to analysis of disparity between bilateral hand movement when performing activity of daily living using accelerometer. Methods : The subjects of this study included 6 healthy adults. The assessment tool used Jebsen Hand Function Test and accelerometer. The subjects performed 7 sub-tests after wearing accelerometer around wrist. Results : Among sub-tests, writing was the only significantly correlated with difference between dominant and non-dominant hand(t=-2.394, p<.05). Further, non-dominant hand (M=2476.2, SD=802.2) showed more movement than dominant hand(M=1456.2, SD=667.6). Conclusion : This results indicated that accelerometer is useful tool for assessment of bilateral hand movement. Considering demographic characteristics, various subject group, further study is needed.

• Imaging Science in Dentistry
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• v.43 no.3
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• pp.163-169
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• 2013

Purpose: Tonsilloliths are calcifications found in the crypts of the palatal tonsils and can be detected on routine panoramic examinations. This study was performed to highlight the benefits of cone-beam computed tomography (CBCT) in the diagnosis of tonsilloliths appearing bilaterally on panoramic radiographs. Materials and Methods: The sample group consisted of 7 patients who had bilateral radiopaque lesions at the area of the ascending ramus on panoramic radiographs. CBCT images for every patient were obtained from both sides of the jaw to determine the exact locations of the lesions and to rule out other calcifications. The calcifications were evaluated on the CBCT images using Ez3D2009 software. Additionally, the obtained images in DICOM format were transferred to ITK SNAP 2.4.0 pc software for semiautomatic segmentation. Segmentation was performed using contrast differences between the soft tissues and calcifications on grayscale images, and the volume in mm3 of the segmented three dimensional models were obtained. Results: CBCT scans revealed that what appeared on panoramic radiographs as bilateral images were in fact unilateral lesions in 2 cases. The total volume of the calcifications ranged from 7.92 to $302.5mm^3$. The patients with bilaterally multiple and large calcifications were found to be symptomatic. Conclusion: The cases provided the evidence that tonsilloliths should be considered in the differential diagnosis of radiopaque masses involving the mandibular ramus, and they highlight the need for a CBCT scan to differentiate pseudo- or ghost images from true bilateral pathologies.

• Archives of Plastic Surgery
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• v.37 no.5
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• pp.699-701
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• 2010

Purpose: Mondor's disease is a rare benign condition which involves thrombophlebitis of the superficial veins of the breast and anterior chest wall after breast surgery, breast tissue biopsy, inflammatory reaction, breast cancer, trauma. The affected veins include the lateral thoracic, axillary veins, thoracoepigastric veins and superior epigastric veins. Methods: A 49-year-old woman presented to the outpatient department with complaints of the sudden appearance of a subcutaneous cord just under the skin at left lower lateral abdominal wall 1 month later of bilateral mastectomy due to both severe breast paraffinoma. The cord was initially red and tender and subsequently became a painless, tough, fibrous band that was accompanied by tension and skin retraction. Results: On ultrasonographic findings, palpable threadlike structures at both lateral superficial abdominal wall after bilateral mastectomy were noted. Superficial short elongated hypoechoic tubular structures were noted just under the skin at palpable lower lateral abdominal wall. It was compatible to Mondor's disease of thoracoepigastric vein. Conclusion: The increase in breast surgery will give rise to the increase in the frequency of Mondor's disease clinically. Mondor's disease can be diagnosed with clinical symptoms and image findings and the disease has proved to be benign and self-limited.