639 research outputs found

    Intraosseous Hemangioma of the Middle Turbinate Misdiagnosed As a Nasal Polyp

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    Intraosseous hemangiomas account for 1% of all bone tumors and primarily originate from the vertebral column and skull bones. However, intraosseous hemangiomas of the nasal cavity are extremely rare. Here, we report a case of intraosseous hemangioma with a cavernous pattern arising from the middle turbinate that was preoperatively misdiagnosed as chronic rhinosinusitis with polyps. Except for nasal obstruction, there were no specific rhinologic symptoms. The tumor was excised en bloc by the endoscopic endonasal approach without preoperative embolization

    ANALYSIS OF THE MOTION PLANES OF THE ‘FUNCTIONAL DOUBLE-PENDULUM’ POINTS IN GOLF

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    The purpose of this study was to investigate the swing characteristics of the skilled and less skilled golfers by comparing the properties of the functional swing plane (FSP) and motion planes (MPs) formed by the clubhead and key functional double-pendulum points. Twenty-seven male golfers were recruited: skilled (n = 15; handicap ? 3) and less skilled (n = 12; 12-18 handicap). The slopes and direction angles of the FSP and MPs were quantified. The skilled group was characterized by steeper MPs than the less skilled (p < 0.05). The skilled group also revealed more closed (or less open) FSP and MPs than the less skilled with an exception: the left shoulder plane. The skilled group aligned the left hand plane with the FSP closely, whereas the less skilled group aligned the left shoulder plane with the FSP

    ANALYSIS OF THE TRUNK/SHOULDER COMPLEX MOTION DURING THE GOLF DRIVES USING A 5-SEGMENT TRUNK/SHOULDER MODEL

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    The purpose of this study was to quantify detailed trunk/shoulder complex motions during the golf drives using a new 5-segment trunk/shoulder model (pelvis, abdomen, thorax, and right/left shoulder girdles) and to describe the patterns of the relative motions of the trunk/shoulder segments. Fifteen male golfers were divided into two groups: skilled (n=8, 3-handicap or better) and less skilled (n=7, 13- to 18-handicap). The ranges of the orientation angles of the segments during the downswing were computed. In addition to the dominant rotation of the thorax, substantial frontal plane motions of the trunk segments (abdomen and thorax) and transverse plane motions of the shoulder girdles were observed. Only the frontal plane motion of the left shoulder girdle (elevation/depression) was identified as the factor which differentiated the groups

    EFFECTS OF FOOT PLACEMENT ON RESULTANT JOINT MOMENTS OF LOWER EXTREMITY JOINTS DURING SQUAT

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    The purpose of this study was to investigate the effects of foot placement (stance width and foot angle) on normalized sagittal- and frontal-plane resultant joint moments (NRJM) of the lower extremity joints during the squat. Forty-two participants were recruited: male (n = 21) and female (n = 21). Three-dimensional motion analysis and inverse dynamics analysis were conducted. There was a significant interaction between the stance width and foot angle on the NRJM in the sagittal plane, whereas there were significant main effects of the stance width, foot angle, and gender on the NRJM in the frontal plane

    Freshwater and Terrestrial Algae from Ny-Ålesund and Blomstrandhalvøya Island (Svalbard)

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    A field survey of algae and cyanobacteria from terrestrial and freshwater habitats in the vicinity of Ny-Ålesund and on Blomstrandhalvøya Island (Svalbard) was performed in June 2009, and results were compared with data from our fieldwork in June 2006. In total, we identified 30 taxa belonging to 23 genera from the specimens collected near Ny-Ålesund (26 taxa) and on Blomstrandhalvøya Island (24 taxa). Five species previously unrecorded from this locality are depicted, including astaxanthin-containing Haematococcus sp. collected from Blomstrandhalvøya Island. This is the first report on a Haematococcus species from the High Arctic.Une étude sur le terrain portant sur les algues et les cyanobactéries d’habitats terrestres et dulçaquicoles dans les environs de Ny-Ålesund et de l’île Blomstrandhalvøya (Svalbard) a été réalisée en juin 2009, et les résultats ont été comparés aux données de notre travail sur le terrain effectué en juin 2006. En tout, nous avons identifié 30 taxons appartenant à 23 genres à partir de spécimens prélevés près de Ny-Ålesund (26 taxons) et de Blomstrandhalvøya (24 taxons). Cinq espèces qui n’avaient jamais été répertoriées dans cette localité sont illustrées, dont l’Haematococcus sp. contenant de l’astaxanthine recueillie à l’île Blomstrandhalvøya. Il s’agit de la première fois que l’espèce Haematococcus a été signalée dans l’Extrême-Arctique
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